Browse Topic: Non-destructive tests

Items (899)

Study of Natural Fiber Incorporated Polypropylene Composite Laminate for Lightweight Applications

2024-01-5236

12/10/2024

Biodegradable natural fiber-embedded polymer composites offer distinct mechanical properties and are utilized for lightweight applications. However, composites made with untreated natural fibers lack adhesive behaviour, and increased moisture absorption leads to reduced mechanical qualities. To address this, hemp fibers are treated with a 5% sodium hydroxide (NaOH) solution to enhance adhesive strength. The treated fibers are then used to fabricate polypropylene composites through a hand layup process involving compression force. The synthesized composite samples contain 0%, 10%, 20%, and 30% weight (wt%) of hemp fiber and undergo X-ray diffraction (XRD) analysis, as well as tensile, flexural, and impact strength studies. XRD analysis shows a short peak for the hemp fiber and a large peak for the polypropylene matrix. Experimental results indicate that the polypropylene composite with 30 wt% NaOH-treated hemp fiber exhibits increased tensile strength (53 MPa), improved flexural

Venkatesh, R., Aravindan, N., Manivannan, S., Karthikeyan, S., Mohanavel, Vinayagam, Soudagar, Manzoore Elahi Mohammad, Karthikeyan, N.

Training Guidance for Solid Laminate Composite Nondestructive Inspection/Testing to Enhance Proficiency and Improve Reliability

AIR7491 (Current)

11/21/2024

Increased use of advanced composite structural materials on aircraft has resulted in the need to address the more demanding quality and nondestructive testing procedures. Accordingly, increased utilization of solid laminate composites is driving changes to airline NDI/NDT training requirements and greater emphasis on the application of accurate NDI/NDT methods for composite structures. Teaching modules, including an introduction to composite materials, composite NDI/NDT theory and practice, special cases and lessons learned, are included in this document as well as various hands-on NDI/NDT exercises. A set of proficiency specimens containing realistic composite structures and representative damage are available to reinforce teaching points and evaluate inspector’s proficiency. Extensive details of the guidance modules, hands-on exercises, and proficiency specimens are all presented in this document. This document does not replace OEM guidance as may be specific to material, process

AMS CACRC Commercial Aircraft Composite Repair Committee

ENHANCED BLAST PROTECTION WITH POLYMER COMPOSITES CONTAINING XGNP^® GRAPHENE NANOPLATELETS

2024-01-3640

11/15/2024

ABSTRACT Fiber reinforced thermoset composites are well known for delivering 50% or more weight savings when compared with steel components while also providing strength, stiffness, and toughness. Nanoparticle additives have been shown to significantly increase the mechanical properties of thermoplastic and thermoset polymer matrices over the base matrix values. Extensive testing and characterization of composites containing graphene nanoplatelets (GnP) has been conducted and reported by XG Sciences’ (XGS) collaborators at the Michigan State University (MSU) Composite Materials and Structures Center. In a recent program with U.S. Army Tank Automotive Research, Development and Engineering Center (TARDEC), MSU investigated lightweight composites for blast and impact protection. High strain rate test facilities as well as high speed photography and non-destructive interferometry-based evaluation techniques were used to evaluate blast performance. The experimental results are presented

Privette, R., Fukushima, H., Drzal, L.T., Robinson, M.

FINITE ELEMENT OPTIMIZATION FOR NONDESTRUCTIVE EVALUATION ON A GRAPHICS PROCESSING UNIT FOR GROUND VEHICLE HULL INSPECTION

2024-01-3430

11/15/2024

ABSTRACT Shape reconstruction for nondestructive evaluation (NDE) of internal defects in ground vehicle hulls using eddy current probes provides a rationale for determination of when to withdraw vehicles from deployment. This process requires detailed finite element optimization and is computationally intensive. Traditional shared memory parallel systems, however, are prohibitively expensive and have limited central processing units (CPUs), making speedup limited. So parallelization has never been done. However, a CPU that is connected to graphics processing units (GPUs) with effective built-in shared memory provides a new opportunity. We implement the naturally parallel, genetic algorithm (GA) for synthesizing defect shapes on GPUs. Shapes are optimized to match exterior measurements, launching the parallel, executable GA kernel on hundreds of CUDA™ (Compute Unified Device Architecture) threads to establish the efficiencies

Karthik, Victor U., Sivasuthan, Sivamayam, Rahunanthan, Arunasalam, Jayakumar, Paramsothy, Thyagarajan, Ravi S., Hoole, S. Ratnajeevan H.

Procedure Qualification Scheme Portfolio for Metal Directed Energy Deposition Additive Manufacturing

2024-01-3929

11/15/2024

ABSTRACT Standard requirements for directed energy deposition (DED) additive manufacturing (AM) of parts were needed for a new NAVSEA Technical Publication. DED procedure qualification schemes were developed for integrated and non-integrated build platforms and for both single-sided and double-sided build applications. A double-sided build platform approach is widely preferred for distortion control and build productivity. These procedure qualification requirements were developed for arc, laser, and electron beam welding-based DED processes using wire or powder consumables. Each procedure qualification scheme included a standard qualification build (SQB) design, nondestructive evaluation test map, property specimen test matrix and qualification records for each application and process combination. Since these metal AM processes cover a range of feature size capabilities that are defined by minimum deposit bead width, SQBs were designed for full-scale (~> 5 mm), sub-scale (~2 – 5 mm

Harwig, D.D., Mohr, W., Kapustka, N., Hay, J., Carney, M., Hovanec, S., Handler, E., Farren, J., Rettaliata, J., Hayleck, R.

NON-DESTRUCTIVE TESTING OF SENSOR ENHANCED ARMOR

2024-01-3236

11/15/2024

ABSTRACT The US Army is replacing conventional armor with new types of ballistic protection which are lighter in weight than the materials they replace yet offer the same degree of protection. A key component of this new type of armor is called Multi Functional (MFA) or Sensor Enhanced Armor (SEA) because the armor provides more capabilities than traditional ballistic protection for the soldier and ground vehicle. In this paper we shall concentrate on the real-time health monitoring of SEA. We have developed a method which has been applied to several types of new ballistic protection. We use ultrasonic waves to excite the armor panel. We measure the response to the excitation when the ballistic protection is known to be undamaged and store the results in a database. To determine if the armor has been damaged, we measure it again and compare the new results to the contents of the database

Reynolds, Thomas, Meitzler, Thomas J., Ebenstein, Samuel

Detection of Cut-Out in Aluminum Plate Using Ultrasonic Guided Waves: A Finite Element Analysis

01-17-03-0019

11/09/2024

Aluminum alloys serve a critical role in the aerospace industry, accounting for a significant amount of commercial aircraft weight. Despite the growing use of composite materials, aluminum remains important in airframe construction due to its lightweight, cost-effectiveness, and high strength potential. Structural integrity is critical in modern engineering, necessitating early diagnosis and localization of damage. To detect the flaws, cracks, and cut-out in the structures, structural health monitoring (SHM) systems are essential, with non-destructive testing (NDT) methodologies playing critical roles. Among these technologies, ultrasonic guided wave testing (UGWT) has gained popularity because of its capacity to propagate over long distances and detect subsurface faults. This article investigates the use of UGWs to identify cut-outs in aluminum plates. The numerical investigation has been carried out using commercially available finite element software Abaqus. The ultrasonic lamb

Rajput, Arun, Patil, Vaibhav Kailas, Bhosale, Aniket, Yadav, Ritesh, Ghatge, Adityaraj, Pandey, Anand Ji

Spacers and Washers, Procurement Specification for, Metric

MA1784A (Historical)

10/03/2024

This specification covers metric aircraft quality spacers for use as positioners for tubes, flat washers for use as load spreaders, galling protection of adjacent surfaces and or material compatibility, and key or tab washers for use as locks for bolts, nuts, and screws

E-25 General Standards for Aerospace and Propulsion Systems

Innovating Non-Destructive Test Systems Using Advanced Automation

TBMG-51710

10/01/2024

Designing non-destructive test (NDT) systems for aerospace clients can feel like engineering with blindfolds on. Even when the parts under test aren’t confidential, they can change rapidly as companies optimize their designs. This accelerated innovation helps launch more powerful, safer vehicles for use inside Earth’s orbit and beyond. But how do you create precision inspection systems without knowing what they’ll inspect in the field

Eddy Current Inspection of Open Fastener Holes in Aluminum Aircraft Structure

ARP4402A (Current)

09/17/2024

This SAE Aerospace Recommended Practice establishes the requirements and procedures for eddy current inspection of open fastener holes in aluminum aircraft structures

AMS K Non Destructive Methods and Processes Committee

Minimization of High Temperature Oxidation, Aluminum Alloy Heat Treatment

ARP7500 (Current)

07/03/2024

This recommended practice provides recommendations for minimizing high temperature oxidation (HTO) during the heat treatment of aluminum alloy products and parts. HTO leads to deterioration of properties

AMS D Nonferrous Alloys Committee

Aerospace - General Requirements for Hydraulic Fuse - Quantity Measuring

AS5466 (Current)

06/24/2024

This specification establishes the design, performance, and test requirements for hydraulic quantity measuring fuses intended to be used for hydraulic circuit protection

A-6C5 Components Committee

Enhanced Ultrasonic Immersion Inspection for Titanium Alloy and other Metal Alloy Billets

AMS2628C (Current)

05/17/2024

This specification covers procedures for ultrasonic immersion inspection of premium-grade wrought titanium and titanium alloy round billet 5 inches (127 mm) and over in nominal diameter (see 2.6.1). Metal alloy billets other than titanium may be tested to this specification with the use of suitable reference standards

AMS K Non Destructive Methods and Processes Committee

Castings, Classification and Inspection

AMS2175B (Current)

04/25/2024

This specification establishes nondestructive testing methods, sampling frequency, and acceptance criteria for the inspection of metal castings

AMS B Finishes Processes and Fluids Committee

Acceptance Criteria for Nuts - Magnetic Particle, Fluorescent Penetrant, and Visible Penetrant Examination

AS5447A (Current)

04/01/2024

This standard establishes the acceptance criteria for surface discontinuities as revealed by magnetic particle or liquid penetrant examination of nuts

E-25 General Standards for Aerospace and Propulsion Systems

Automatic Switching for Radiation Emission Control Device in Radiographic Testing – Non-Destructive Testing

2023-01-5108

02/23/2024

In radiography testing, the radioactive elements Iridium 192 (Ir192) and Cobalt 60 (Co60) are employed to detect subsurface and inner flaws. These radioactive components are kept secure within the radiation-protected source camera. Despite the fact that the camera is safe, there is a little quantity of radiation that may harm human body cells. In this present study, it restricts radiation emission by placing a lead sheet over the source camera, which absorbs the produced radiation. The innovative concept involves in this present work is to place a manually operated switch near the radiation source to emit radiation

Suresh Balaji, R., Daniel Das, A., Marimuthu, S., Manivannan, S.

Magnetic Particles, Fluorescent Wet Method, Oil Vehicle, Ready-to-Use

AMS3045G (Current)

01/16/2024

This specification covers fluorescent magnetic particles in the form of a mixed, ready-to-use suspension in an odorless inspection oil vehicle

AMS K Non Destructive Methods and Processes Committee

Water Conditioning Agents for Aqueous Magnetic Particle Inspection

AS4792C (Current)

01/16/2024

This SAE Aerospace Standard (AS) covers water conditioning agents used to facilitate aqueous wet-method magnetic particle inspection

AMS K Non Destructive Methods and Processes Committee

Magnetic Particles, Fluorescent Wet Method, Dry Powder

AMS3044H (Current)

01/05/2024

This specification covers fluorescent magnetic particles in the form of a dry powder

AMS K Non Destructive Methods and Processes Committee

Landing Gear Component Heat Damage

AIR5913A (Current)

11/16/2023

The purpose of this report is to outline types of in-service heat damage that have been observed in high strength steel landing gear components, with an emphasis on a particular type that is referred to as “Ladder Cracking” which can develop in landing gear shock struts. The report discusses how ladder cracking can be detected visually and evaluated by non-destructive inspection methods, and how it can be repaired at overhaul with the prior approval of the Original Equipment Manufacturer. This report also describes the use of a bearing material that has resolved this problem without introducing other problems. Examples of other types of service induced heat damage are also discussed

A-5B Gears, Struts and Couplings Committee

The Neutronic Engine: A Platform for Operando Neutron Diffraction in Internal Combustion Engines

03-17-02-0016

11/09/2023

Neutron diffraction is a powerful tool for noninvasive and nondestructive characterization of materials and can be applied even in large devices such as internal combustion engines thanks to neutrons’ exceptional ability to penetrate many materials. While proof-of-concept experiments have shown the ability to measure spatially and temporally resolved lattice strains in a small aluminum engine on a timescale of minutes over a limited spatial region, extending this capability to timescales on the order of a crank angle degree over the full volume of the combustion chamber requires careful design and optimization of the engine structure to minimize attenuation of the incident and diffracted neutrons to maximize count rates. We present the design of a “neutronic engine,” which is analogous to an optical engine in that the materials and external geometry of a typical automotive engine have been optimized to maximize access of the diagnostic while maintaining the internal combustion chamber

Wissink, Martin, Wray, Christopher L., Lee, P.M., Hoffmeyer, Matthew M., Frost, Matthew J., An, Ke, Chen, Yan

Learning Defects From Aircraft NDT Data

23AERP10_10

10/01/2023

Non-destructive evaluation of aircraft production is optimized and digitalized with Industry 4.0. The aircraft structures produced using fiber metal laminate are traditionally inspected using water-coupled ultrasound scans and manually evaluated. German Aerospace Center (DLR), Augsburg, Germany Ultrasonic Testing (UT) is a typical Non-destructive testing (NDT) method for examining the structural components for aircraft production. Manufacturing aircraft made of fiber metal laminates (FML) includes cascaded steps such as placement of aluminum, glass prepreg, adhesive, doublers, stringers, vacuum bagging and curing in an autoclave. Quality control (QC) is performed first at the layup of the component (without stringers) after curing and the quality assessment is visually evaluated. The manually performed examination of anomalies is very time-consuming. In addition, conducted NDT inspection using a manual UT phased array for Glass Reinforced (GLARER) FML of A380, it lacked the high

Learning Defects From Aircraft NDT Data

TBMG-49270

10/01/2023

Ultrasonic Testing (UT) is a typical Non-destructive testing (NDT) method for examining the structural components for aircraft production. Manufacturing aircraft made of fiber metal laminates (FML) includes cascaded steps such as placement of aluminum, glass prepreg, adhesive, doublers, stringers, vacuum bagging and curing in an autoclave. Quality control (QC) is performed first at the layup of the component (without stringers) after curing and the quality assessment is visually evaluated. The manually performed examination of anomalies is very time-consuming. In addition, conducted NDT inspection using a manual UT phased array for Glass Reinforced (GLARE®) FML of A380, it lacked the high capacity of data and additionally an evaluation software

Ultrasonic Thickness Testing

ARP2654A (Current)

07/11/2023

To provide general instructions for accomplishing ultrasonic thickness measurements. Measurements can be made from one side of a material when access to the opposite side is restricted

AMS K Non Destructive Methods and Processes Committee

Solution, Fluorescent Penetrant Water Base for LOX (Liquid Oxygen) Compatibility

AMS3158E (Current)

06/27/2023

This specification covers a stable, noncorrosive, water-soluble, highly-penetrating, fluorescent solution which may, but need not, be diluted with an appropriate amount of water for use

AMS K Non Destructive Methods and Processes Committee

Nondestructive Inspection Program Requirements for Aerospace Systems

AS6870A (Current)

06/02/2023

This SAE Aerospace Standard defines the requirements for establishing a nondestructive inspection (NDI) program for aerospace systems to include but not limited to aircraft structure, aircraft stores (external structures such as antennas, pods, fuel tanks, weapons, radomes, etc.) and missile/rocket structural components when an NDI Program Plan is required by contract. NDI Programs are essential to ensuring NDI processes are implemented to support the lifecycle design requirements of the system and its components. NDI Programs are applicable to all phases of the system life cycle, including acquisition, modification, and sustainment. This standard may also be applicable to mechanical equipment, subsystems, and propulsion systems, but the requirements defined by the NDI Program Plan should be tailored by the contracting agency for such use. An NDI Program Plan shall be developed at the beginning of the technology development phase and shall define all NDI requirements to be adhered to

AMS K Non Destructive Methods and Processes Committee

Aluminum Alloy Forgings 7.7Zn - 2.5Mg - 1.5Cu - 0.16Cr (7049-T73) Solution and Precipitation Heat Treated

AMS4111F (Current)

05/17/2023

This specification covers an aluminum alloy in the form of die forgings or hand forgings up to 5 inches (125 mm) in thickness, and forging stock of any size (see 8.7

AMS D Nonferrous Alloys Committee

Magnetic Particles, Nonfluorescent, Wet Method, Oil Vehicle, Aerosol Packaged

AMS3043F (Current)

05/10/2023

This specification covers nonfluorescent magnetic particles in the form of a mixed, ready-to-use suspension in an odorless oil vehicle and packaged in aerosol cans

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Magnetic Particles, Nonfluorescent Dry Method

AMS3040E (Current)

05/10/2023

This specification covers nonfluorescent, magnetic particles having black, red, gray, or other color, as specified, supplied in the form of dry powders

AMS K Non Destructive Methods and Processes Committee

Aluminum Alloy Die Forgings (7050-T74) Solution Heat Treated and Overaged

AMS4107H (Current)

05/10/2023

This specification covers an aluminum alloy in the form of die forgings up to 6.000 inches (152.40 mm), inclusive, in nominal thickness and forging stock of any size (see 8.6

AMS D Nonferrous Alloys Committee

Bolts and Screws, Steel, Low Alloy, Heat Resistant 135000 psi Tensile Strength, Normalized and Tempered, Roll Threaded

AS7454C (Current)

05/10/2023

This procurement specification covers aircraft quality bolts and screws made from a low alloy, heat resistant steel of the type identified under the Unified Numbering System as UNS K14675

E-25 General Standards for Aerospace and Propulsion Systems

Aluminum Alloy, Sheet, and Plate 6.3Cu - 0.30Mn - 0.06Ti - 0.10V - 0.18Zr Solution and Precipitation Heat Treated (2219 -T81/-T851

AMS4599B (Current)

05/10/2023

This specification covers an aluminum alloy in the form of sheet and plate from 0.020 to 6.000 inches (0.51 to 152.40 mm), inclusive, in thickness (see 8.5

AMS D Nonferrous Alloys Committee

Development of Digital Shearography for Dual Sensitivity Simultaneous Measurement Using Carrier Frequency Spatial Phase Shift Technology

2023-01-0068

04/11/2023

Digital shearography has many advantages, such as full-field, non-contact, high sensitivity, and good robustness. It was widely used to measure the deformation and strain of materials, also to the application of nondestructive testing (NDT). However, most digital sherography applications can only work in one field of view per measurement, and some small defects may not be detected as a result. Multiple measurements of different fields of view are needed to solve this issue, which will increase the measurement time and cost. The difficulty in performing multiple measurements may also increase for cases where the loading is not repeatable. Therefore, a system capable of measuring dual fields of view at the same time is necessary. The carrier frequency spatial phase shift method may be a good candidate to reach this goal because it can simultaneously record phase information of multiple images, e.g. two speckle interferograms with different fields of view. It then obtains the phase

Zheng, Xiaowan, Guo, Bicheng, Fang, Siyuan, Sia, Bernard, Yang, Lianxiang

In Line Nondestructive Testing for Sheet Metal Friction Stir Welding

2023-01-0069

04/11/2023

As automotive designs add more aluminum to lightweight their vehicles, friction stir welding (FSW) will likely become a principal joining process in the industry. FSW is a solid-state joining process which avoids many of the traditional problems of welding aluminum alloys such as hot cracking, porosity and solidification shrinkage. These attributes enable high preforming friction stir welded joints of cast, 5XXX, 6XXX, 7XXX or mixed aluminum alloy combinations. Although FSW technologies have advanced to support high volume applications and have been applied in current automotive parts, its inability for nondestructive evaluation (NDE) increases the cost to manufacture friction stir welded parts. Current state of the art NDE methods for FSW are either ultrasound or radiographic technologies which add complexity to manufacturing lines and additional costs to FSW production. Many have researched ways to reduce NDE costs by using measured forces of the FSW process. These methods have

Hunt, Johnathon, Larsen, Brigham, Hovanski, Yuri

Modernization of Equipment in Aerospace Nondestructive Inspection

2023-01-1007

03/07/2023

Equipment used in aerospace non-destructive inspection presents opportunity for modernization. Many inspection cells in production operate using a widely available control system software that is suitable for most inspection applications with minimal customization. The size and complex geometry of airframe components demand more application-specific system design to ensure the reliability and cycle time required for an aerospace production schedule. Ordinary inspection systems require manual teaching for program generation and lack datum-finding systems required to rerun programs without modification. Integration of offline programming software and machine vision instruments can save inspection technicians hours or shifts per part by eliminating the need for program retraining due to variation in part delivery position. Modernized inspection cells will reduce labor burden on technicians and provide reliable cycle time information to production planners

Elrod, Joshua, Waterman, Michael, Parker, Dylan

Magnetic Particles, Nonfluorescent Wet Method, Oil Vehicle, Ready-to-Use

AMS3041G (Current)

02/20/2023

This specification covers nonfluorescent magnetic particles in the form of a mixed, ready-to-use suspension in an odorless inspection oil vehicle. The magnetic particles shall be in the form of either a single material or composite material as defined in 1.3

AMS K Non Destructive Methods and Processes Committee

Tool Steel Ring for Magnetic Particle Inspection

AS5282C (Current)

02/20/2023

This SAE Aerospace Standard (AS) establishes requirements for the manufacture and certification of tool steel rings for magnetic particle inspection

AMS K Non Destructive Methods and Processes Committee

Steel, Corrosion- and Heat-Resistant, Welded Tubing 17Cr - 7.1Ni - 1.1Al Solution Heat Treated, Precipitation-Hardenable

AMS5568J (Current)

02/14/2023

This specification covers a corrosion- and heat-resistant steel in the form of welded tubing

AMS F Corrosion and Heat Resistant Alloys Committee

Aluminum Alloy, Plate (2297-T87) 2.8Cu - 1.5Li - 0.30Mn - 0.12Zr Solution Heat Treated, Stretched, and Artificially Aged

AMS4330E (Current)

12/07/2022

This specification covers an aluminum alloy in the form of plate 1.500 to 6.000 inches (38.1 to 152.40 mm) thick (see 8.5

AMS D Nonferrous Alloys Committee

General Requirements for Hydraulic Fuse - Flow Rate

AS5467 (Current)

11/18/2022

This specification establishes the design, performance, and test requirements for hydraulic flow rate fuses intended to be used for hydraulic circuit protection on aircraft

A-6C5 Components Committee

Steel, Corrosion and Moderate Heat-Resistant, Investment Castings 12.5Cr (410) Hardened and Tempered

AMS5350K (Current)

11/18/2022

This specification covers a corrosion and moderate heat-resistant steel in the form of investment castings

AMS F Corrosion and Heat Resistant Alloys Committee

Steel, Corrosion-Resistant, Investment Castings 16Cr - 4.1Ni - 0.28Cb - 3.2Cu Homogenization and Solution Heat Treated or Homogenization, Solution, and Precipitation Heat Treated

AMS5355J (Current)

11/18/2022

This specification covers a corrosion resistant steel in the form of investment castings

AMS F Corrosion and Heat Resistant Alloys Committee

Steel, Corrosion-Resistant, Investment Castings 15Cr - 4.6Ni - 0.22Cb - 2.8Cu Solution and Precipitation Heat Treated (H1100) 130 ksi (896 MPa) Tensile Strength

AMS5356D (Current)

11/18/2022

This specification covers a corrosion resistant steel in the form of investment castings

AMS F Corrosion and Heat Resistant Alloys Committee

Aluminum Alloy, Rolled or Forged Rings 6.3Cu - 0.30Mn - 0.18Zr - 0.10V - 0.06Ti (2219-T351, 2219-T352) Solution Heat Treated and Mechanically Stress Relieved

AMS4313F (Current)

11/14/2022

This specification covers aluminum alloy rolled or forged rings up to 6 inches (152 mm) which are produced and shipped in the –T351 or –T352 temper and are artificially aged to the –T82 temper prior to being put into service

AMS D Nonferrous Alloys Committee

Aluminum Alloy, Sheet and Plate, 6.3Cu - 0.30Mn - 0.06Ti - 0.10V - 0.18Zr, Solution Heat Treated, Cold Worked (8%) and Precipitation Heat Treated (2219 -T87

AMS4613B (Current)

11/02/2022

This specification covers an aluminum alloy in the form of sheet and plate from 0.020 to 5.000 inches (0.51 to 127.00 mm), inclusive, in nominal thickness (see 8.5

AMS D Nonferrous Alloys Committee

Magnetic Particle Acceptance Criteria for Parts

AMS2442A (Current)

10/20/2022

This specification establishes acceptance criteria for discontinuities revealed by magnetic particle inspection of parts made from wrought, ferromagnetic materials

AMS B Finishes Processes and Fluids Committee

Aluminum Alloy Plate (2624-T39) 4.1Cu - 1.4Mg - 0.6Mn Solution Heat Treated, Cold Worked and Naturally Aged

AMS4473B (Current)

10/13/2022

This specification covers an aluminum alloy in the form of plate 0.750 to 1.500 inch (19.05 to 38.10 mm), inclusive, in nominal thickness (see 8.5

AMS D Nonferrous Alloys Committee

Aluminum Alloy, Plate 5.0Cu - 0.4Mn - 0.5Mg - 0.4Ag (2139-T84) Solution Heat Treated, Cold Worked, and Artificially Aged

AMS4468A (Current)

10/13/2022

This specification covers an aluminum alloy in the form of plate with nominal thickness from 1.000 to 5.000 inches (25.40 to 127.00 mm), inclusive (see 8.5

AMS D Nonferrous Alloys Committee

Aluminum Alloy, Plate 4.0Cu - 1.0Li - 0.40Mg - 0.35Ag - 0.13Zr (2195-T34) Solution Heat Treated and Stress Relieved

AMS4472B (Current)

10/13/2022

This specification covers an aluminum alloy in the form of plate 0.500 to 2.250 inches (12.70 to 57.15 mm), inclusive, in nominal thickness (see 8.6

AMS D Nonferrous Alloys Committee

X-Ray Crack Detectability

TBMG-4674510/01/2022

Innovators at NASA Johnson Space Center have developed flaw size parameter modeling to determine if a specific X-ray setup can detect cracks of various sizes within materials. These models allow users to optimize X-ray radiography setups, for the detection of crack and crack-like flaws, to penetrate various materials to show internal structures of parts

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