Browse Topic: Aluminum alloys

Items (6,424)
This study provides an extensive analysis through finite element analysis (FEA) on the effects of fatigue crack growth in three different materials: Structural steel, Titanium alloy (Ti Grade 2), and printed circuit board (PCB) laminates based on epoxy/aramid. A simulation of the materials was created using ANSYS Workbench with static and cyclic loading to examine how the materials were expected to fail. The method was based on LEFM and made use of the Maximum Circumferential Stress Criterion to predict where cracks would happen and how they would progress. Normalizing SIFs while a crack was under mixed loading conditions was achieved using the EDI method [84]. We used Paris Law to model fatigue crack growth using constants (C and m) for the materials from previous studies and/or tests. For example, in the case of titanium Grade 2, we found Paris Law constants with C values from 1.8 × 10-10 to 7.9 × 10-12 m/cycle and m values from 2.4 to 4.3, which illustrate differing effects of their
T, LokeshBhaskara Rao, Lokavarapu
This specification covers a coating consisting of tungsten disulfide without binders and does not require a curing process.
AMS B Finishes Processes and Fluids Committee
This specification covers a magnesium alloy in the form of extruded bars, rods, wire, tubing, and profiles.
AMS D Nonferrous Alloys Committee
This specification covers an aluminum alloy in the form of hand forgings up to 8 inches (203 mm), inclusive, in nominal thickness and a cross-sectional area not over 256 square inches (1652 cm2) and rolled rings up to 3.5 inches (89 mm), inclusive, in nominal thickness and with an OD to wall thickness ratio of 10:1 or greater (see 8.6).
AMS D Nonferrous Alloys Committee
This specification covers a magnesium alloy in the form of plate 0.250 to 2.000 inches (6.35 to 50.80 mm), inclusive, in nominal thickness (see 8.5).
AMS D Nonferrous Alloys Committee
This SAE Aerospace Standard (AS) covers miniature, composite, high density, threaded coupling, self-locking, circular, environment-resistant, electrical connectors utilizing removable crimp contacts, and associated hardware, which are capable of continuous operation within a temperature range of -65 to +175 °C (-85 to 347 °F). These connectors are supplied under an AS9100 reliability assurance program. See 6.1 for intended use and applications.
AE-8C1 Connectors Committee
This specification covers an aluminum alloy in the form of rolled or forged rings up to 6 inches (152 mm), inclusive, in nominal thickness at the time of heat treatment and having an OD to wall thickness ratio of 10 or greater (see 8.6).
AMS D Nonferrous Alloys Committee
This specification covers an aluminum alloy in the form of Alclad sheet and plate 0.040 to 1.000 inch, inclusive (1.02 to 25.40 mm, inclusive) in nominal thickness (see 8.5).
AMS D Nonferrous Alloys Committee
This research investigates the applicability of ADC12 aluminum alloy in sand casting processes and compares its casting behavior and performance with that of conventionally sand-cast alloys such as A356 and AlSi10Mg. ADC12 is primarily utilized in high-pressure die casting (HPDC) and low-pressure die casting (LPDC) due to its excellent castability, pressure tightness, and favorable mechanical properties in thin-walled components. However, its use in sand casting is minimal globally, primarily due to the alloy’s high silicon and iron content, which can lead to poor feeding characteristics, increased porosity, and structural non-uniformity in non-pressurized molds. In this study, 3 mm thick test castings were produced using conventional sand casting methods, with particular attention to mold and core design to simulate challenging flow and solidification conditions. Comparative castings of A356 and AlSi10Mg were also produced under identical conditions to establish performance baselines
Subramani, RajeshSingh, GajendraDoddamani, Mrityunjay
Aluminum alloy wheels have become the preferred choice over steel wheels due to their lightweight nature, enhanced aesthetics, and contribution to improved fuel efficiency. Traditionally, these wheels are manufactured using methods such as Gravity Die Casting (GDC) [1] or Low Pressure Die Casting (LPDC) [2]. As vehicle dynamics engineers continue to increase tire sizes to optimize handling performance, the corresponding increase in wheel rim size and weight poses a challenge for maintaining low unsprung mass, which is critical for ride quality. To address this, weight reduction has become a priority. Flow forming [3,4], an advanced wheel rim production technique, which offers a solution for reducing rim weight. This process employs high-pressure rollers to shape a metal disc into a wheel, specifically deforming the rim section while leaving the spoke and hub regions unaffected. By decreasing rim thickness, flow forming not only enhances strength and durability but also reduces overall
Singh, Ram KrishnanMedaboyina, HarshaVardhanG K, BalajiGopalan, VijaysankarSundaram, RaghupathiPaua, Ketan
Friction stir welding (FSW) of Al 6063 alloy plates of 6 mm thickness was investigated in the present study for exploring the mechanical attributes of the welded joints. The tool profile significantly influences the quality of joints produced by FSW. In the current study, the influence of tool profile and FSW process parameters on the FSW weld characteristics of similar joining of Al 6063 plates has been investigated. The effect of FSW tool rotational speed (TRS) and tool travel speed on the FSW weld properties, mainly microstructure characteristics, microhardness, and ultimate tensile strength (UTS), have been studied. Comparison of two different tool profiles, namely taper and cylindrical tool, has also been examined. The effect of transient temperature distribution has also been studied for varying FSW process parameters. When increasing the tool’s rotational speed from 800 to 1200 rpm at a fixed traverse speed of 80 mm/min, a rise in peak temperature is observed. Conversely
Kumar, PramodKumar, VikashKumar, GulshanArif, AbdulPrasad, Chitturi RamZubairuddin, M.
This article aims to estimate the high-cycle fatigue (HCF) behavior of a circumferential notched A357-T6 cast aluminum alloy based on the affected depth (AD) approach. This technique is applied as a useful way to anticipate the fatigue life of notched components using the multiaxial fatigue criterion proposed by Crossland. Simulations of the cyclic finite element (FE) calculations in Abaqus involve implementing an elastic–plastic combined Chaboche model. Calculations lead to determining the Kitagawa–Takahashi diagram for this type of defect under the load ratio Rσ = 0.1, showed good agreement with the experimental data. The study provides a clear quantification of the effect of the notch on fatigue resistance. The fatigue limit of the notched specimen decreases by about 16% when the radius of the notch is equal to 3 m. This cast aluminum alloy has revealed a low sensitivity to notches. The notch sensitivity factor (q) was estimated for different defects and conditions, indicating that
Majed, NesrineNasr, AnouarYoussef, Marwa
The purpose of the study is to present the validation stages of the transmission bearing housings in a Formula SAE prototype and the redesign of the components to reduce mass. The objective was to design and implement bearing housings that are lightweight while withstanding the loads they are subjected to. A numerical simulation using the Finite Element Method (FEM) was conducted to analyze the behavior of the bearing housings, made of 7075 aluminum alloy, under the same boundary conditions as in the test bench. This simulation provided information on deformation and stresses and was used to determine optimal locations for strain gauge placement. Experimental bench tests were performed, applying forces ranging from 100 N to 600 N. With an application of a 600 N load, an experimental deformation of 1.77E-04 mm/mm was obtained, while FEM indicated 1.71E-04 mm/mm, demonstrating significant correlation, with a 3.4% margin of error. This pattern was observed for all loads, highlighting
Kopp, Amanda FontouraHausen, Roberto BegnisMartins, Mario Eduardo Santos
Compared to steel, aluminum alloy has the advantages of light weight, high specific strength, corrosion resistance, and easy processing, and is widely used in structures such as aviation, construction, bridges, and offshore oil platforms. All along, Chinese construction aluminum profiles have been produced according to the GB/T5237-XXXX standard, which is determined based on the mechanical performance requirements of doors and windows and the actual processing of aluminum profiles. There are many problems. The author of this article has developed a new product 6063-T56, which has a tensile strength of 240-260Mpa and an elongation rate of not less than 8%, surpassing the latest technology level in Europe. It has been promoted and applied to the aluminum profile production industry in China, improving product performance, reducing production costs, improving production efficiency, and meeting the requirements of the "Aluminum Alloy Doors and Windows Standard" GB/T8478-2020, making
Qiao, Zhou
This specification covers an aluminum alloy in the form of plate from 0.250 to 1.500 inches (6.35 to 38.10 mm), inclusive, in thickness (see 8.6).
AMS D Nonferrous Alloys Committee
This specification establishes the requirements for anodic coatings on aluminum alloys.
AMS B Finishes Processes and Fluids Committee
This specification covers two tempers of aluminum alloy in the form of bars, rods, and wire up to 8.000 inches (203.2 mm) in nominal thickness (see 8.6).
AMS D Nonferrous Alloys Committee
This specification covers an aluminum alloy in the form of pre-alloyed powder.
AMS AM Additive Manufacturing Metals
This specification covers an aluminum alloy in the form of castings (see 8.6).
AMS D Nonferrous Alloys Committee
This specification covers an aluminum alloy in the form of castings (see 8.11).
AMS D Nonferrous Alloys Committee
This specification covers the engineering requirements for producing an anodic coating on aluminum and aluminum alloys which are subsequently sealed with an organic resin.
AMS B Finishes Processes and Fluids Committee
In an attempt to reduce CO2 release from alloy wheel production, we have developed an aluminum alloy for casting that satisfies necessary property requirements using recycled aluminum, but without heat treatment. The wheel is a critical safety feature of any vehicle, and it should have toughness and strength .In many wheels, virgin aluminum containing small amounts of impurities is used to maintain toughness, and heat treatment (T6), which is post-casting quick heating and quenching, is applied to provide strength. At the start of this project, we focused on two wheel-manufacturing processes, production of virgin aluminum and heat treatment, from which a large amount of CO2 is released. By switching to recycled aluminum, CO2 was reduced to one-ninth the original amount. The issue with recycled material is that impurities grow in the metal structures as intermetallic compounds and this reduces toughness. To deal with this issue, we have chosen high-pressure die casting (HPDC), in which
Suzuki, Noritaka
The present study examines the influence of process parameters on the effect of strength and crystalline properties of AlSi10Mg alloy with laser sintered process. A detailed work was carried out with the effects of varying the laser power, scan speed, and hatch distance on crystalline structure, hardness, and surface roughness. From the analysis, the improved surface quality and mechanical performance were achieved with a scan speed of 1200 mm/s, a laser power of 370 W, and a hatch distance of 0.1 mm. An increase in hardness, improved surface finish, and reduced porosity was observed with decreased hatch distance. However, the balanced results were obtained for scanning speed of 1200 mm/s and laser power of 370 W. The ideal processing conditions decreased the crystalline size, increasing the overall material strength, when crystalline analysis was carried out. The higher scanning speeds supported improved grain refinement and heat diffusion, with the poor hardness value. With the lower
Shailesh Rao, A.
This specification covers an acrylonitrile-butadiene rubber in the form of molded rings, compression seals, O-ring cord, and molded-in-place gaskets for aeronautical and aerospace applications.
AMS CE Elastomers Committee
This specification covers an aluminum alloy in the form of sheet and plate 0.008 to 1.000 inch (0.203 to 25.4 mm) thick, supplied in the annealed (O) temper (see 8.5). When specified, product shall be supplied in the “as fabricated” (F) temper (see 8.5).
AMS D Nonferrous Alloys Committee
This specification covers an aluminum-lithium alloy in the form of sheet and plate 0.032 to 0.500 inch (0.81 to 12.70 mm), inclusive, in thickness (see 8.6).
AMS D Nonferrous Alloys Committee
This specification covers an aluminum alloy in the form of castings (see 8.6).
AMS D Nonferrous Alloys Committee
This specification covers an aluminum alloy in the form of plate 4.000 to 10.000 inches (101.60 to 254.00 mm), inclusive, in nominal thickness.
AMS D Nonferrous Alloys Committee
This specification covers an aluminum alloy in the form of bars, rods, and wire, in the sizes shown in 3.3.3, in the “as-fabricated (F) temper.” When specified, product shall be supplied in the annealed (O) condition (see 8.6).
AMS D Nonferrous Alloys Committee
This specification covers an aluminum alloy in the form of die castings.
AMS D Nonferrous Alloys Committee
This study aims at examining the effect of tool rotational speed on the microstructural and mechanical properties of friction stir welded joints of AA6061 aluminum alloy, both pre- and post-heat treatment. The quality of the joints was assessed initially through tensile, hardness, and charpy impact tests, as well as microscopic observations. During the second stage, solid solution heat treatments were conducted at 535°C, followed by aging on additional specimens welded at identical speeds. The latter underwent hardness tensile tests and microscopic examinations. A comprehensive assessment of the outcomes from various tests validated the influence of metallurgical phenomena, including recrystallization, precipitation, and structural defects on overall resistance. The results showed an improvement in strength, ductility, and impact energy was observed in the case of welding at high rotation speed (1400 rpm). At the same speed, ductility almost doubled after post-weld heat treatment
Bouchelouche, FatimaDebih, AliOuakdi, Elhadj
This specification covers an aluminum alloy in the form of castings (see 8.6).
AMS D Nonferrous Alloys Committee
This specification covers an aluminum alloy in the form of permanent mold castings (see 8.6).
AMS D Nonferrous Alloys Committee
This SAE Aerospace Recommended Practice (ARP) covers procedures or methods to be used for fabricating, handling, testing, and installation of oxygen lines in an aircraft oxygen system.
A-10 Aircraft Oxygen Equipment Committee
This specification covers an aluminum alloy in the form of die castings.
AMS D Nonferrous Alloys Committee
This specification covers a dilute aluminum/TiB2 metal matrix composite in the form of investment castings.
AMS D Nonferrous Alloys Committee
Lightweight materials are essential in reducing the overall weight and improving the efficiency and performance of ICE and electric vehicles. The use of aluminum alloys is critical in transitioning to a more energy sustainable and environmentally friendly future. The accessible combinations of high modulus to density and strength to weight ratios, as well as their excellent thermal conductivity, make them an ideal solution for overall weight reduction in vehicles, thereby improving fuel efficiency and reducing emissions. Aluminum alloys with high strength and lifetime thermal stability have been industrialized for usage in brake rotor applications. Amongst the most used aluminum alloys with high thermal stability are 2618-T8 and 4032-T6 for use in aerospace and automotive industries, respectively. However, when it comes to prolonging the life of a product at temperatures that exceed 200°C, the properties of these alloys will quickly degrade within the first 300 hours of exposure
Duchaussoy, AmandineLorenzino, PabloFranklin, JackTzedaki, Maria
This specification covers an aluminum alloy in the form of permanent mold castings (see 8.6).
AMS D Nonferrous Alloys Committee
This specification covers an aluminum alloy in the form of sand, permanent mold, composite mold, and investment castings (see 8.6).
AMS D Nonferrous Alloys Committee
This specification covers an aluminum alloy in the form of sand, permanent mold, and composite mold castings with nominal wall thickness up to 1.0 inch (25 mm) or nominal weight up to 50 pounds (23 kg) (see 8.2 and 8.8).
AMS D Nonferrous Alloys Committee
This specification covers an aluminum bronze alloy in the form of centrifugal and continuous-cast castings (see 8.6).
AMS D Nonferrous Alloys Committee
This specification covers an aluminum alloy in the form of investment castings (see 8.6).
AMS D Nonferrous Alloys Committee
This specification covers a dilute aluminum/TiB2 metal matrix composite in the form of sand castings.
AMS D Nonferrous Alloys Committee
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