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Plating, Silver for High Temperature Applications

AMS B Finishes Processes and Fluids Committee
  • Aerospace Material Specification
  • AMS2411J
  • Current
Published 2019-07-12 by SAE International in United States

This specification covers requirements for silver deposited on metal parts with a nickel strike between the basis metal and the silver deposit.

 
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Fluids for Aerospace Hydraulic Systems

  • Professional Development
  • C1966
Published 2019-07-11
This four-hour short course provides an introduction to fluids for aerospace hydraulic systems. Topics covered include an introduction to basics fluid properties, rheology, tribology, and fluid product development. In addition, the history and performance of different classes of fluids are discussed in detail, and specific failure modes such as erosion and sludge formation will be described. Along with an introduction to fluid degradation, information on used oil analysis test methods and interpretation will be provided.By attending this seminar, you will be able to: Describe the general properties and components of a fluidInterpret a fluid specification or reportIdentify key performance advantages and disadvantages for different fluid typesExplain fluid degradation processes1 Day .4 CEUs
 
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Aluminum Alloy, Extruded Profiles (2043-T85), 2.8Cu - 1.65Li - 0.35Mg - 0.1Zr, Solution Heat Treated, Stress Relieved by Stretching, and Aged

AMS D Nonferrous Alloys Committee
  • Aerospace Material Specification
  • AMS4450
  • Current
Published 2019-07-03 by SAE International in United States

This specification covers an aluminum alloy in the form of extruded rods, bars, and profiles (shapes) produced with thickness between 0.040 and 2.500 inches (1.02 to 38.10 mm) in thickness, and having a maximum cross sectional area of 23 in2 (15000 mm2) and a maximum circumscribing circle diameter (circle size) of 16 inches (406 mm) (see 8.4.1).

 
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Acrylonitrile Butadiene (NBR) Rubber, Aromatic Fuel Resistant, 35 - 45

AMS CE Elastomers Committee
  • Aerospace Material Specification
  • AMS3214M
  • Current
Published 2019-07-03 by SAE International in United States

This specification covers a nitrile (NBR) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes.

 
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Aluminum Alloy, Extruded Bar, Rod, and Shapes, 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr, 7075-T76(51X) Solution Heat Treated and Overaged

AMS D Nonferrous Alloys Committee
  • Aerospace Material Specification
  • AMS4317B
  • Current
Published 2019-07-02 by SAE International in United States

This specification covers an aluminum alloy in the form of extruded bars, rods, and shapes up to 4.000 inches, incl (101.60 mm, incl) in nominal diameter or least thickness, and having a nominal cross-sectional area up to 20 in2 (129 cm2) (see 8.5).

 
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Effect of Welding Parameters on the Microstructure and Tensile Properties of Friction Stir-Welded DP600 Steel

SAE International Journal of Materials and Manufacturing

Isfahan University of Technology, Islamic Republic of Iran-M. Shamanian, R. Emadi, M. Ahl Sarmadi
Islamic Republic of Iran-Hamid Ashrafi
  • Journal Article
  • 05-12-03-0013
Published 2019-07-02 by SAE International in United States
The aim of this study was to investigate the effect of friction stir welding (FSW) parameters on the microstructure and tensile properties of dual-phase (DP) steels. In this regard, DP600 steel sheets were joined using FSW under different tool rotational (ω) and transverse speeds (v). Optical microstructure of the stir zone exhibited a mixture of bainite, Widmanstatten ferrite, grain boundary ferrite, and ferrite-carbide (FC) aggregate, which resulted in a hardness increase compared to the base metal (BM). The fraction of bainite and Widmanstatten ferrite in the stir zone increased with increasing the welding heat input. Formation of a softened zone in the subcritical area of the heat-affected zone (HAZ) resulted in the reduction of ultimate tensile strength and total elongation compared to those for the BM, while the yield strength was only marginally affected. Based on the experimental results, it was found that the joint efficiency of friction stir (FS)-welded DP600 steel decreased in a parabolic trend with increasing ω/v value.
 
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Multistep Self-Assembly for Reconfigurable Materials

  • Magazine Article
  • TBMG-34748
Published 2019-07-01 by Tech Briefs Media Group in United States

Self-assembling synthetic materials come together when tiny, uniform building blocks interact and form a structure; however, nature lets materials like proteins of varying size and shape assemble, allowing for complex architectures that can handle multiple tasks.

 
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Phase-Switching Liquids as Anti-Icing Materials

  • Magazine Article
  • TBMG-34755
Published 2019-07-01 by Tech Briefs Media Group in United States

Techniques to prevent frost and ice formation on surfaces rely heavily on heating or on liquid chemicals that need to be repeatedly reapplied because they easily wash away. Even advanced anti-icing materials have problems functioning under conditions of high humidity and subzero conditions.

 
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More Sensitive Measurement of Semiconductor Material Quality

  • Magazine Article
  • TBMG-34727
Published 2019-07-01 by Tech Briefs Media Group in United States

Accurately measuring semiconductor properties of materials in small volumes helps engineers determine the range of applications for which these materials may be suitable in the future, particularly as the size of electronic and optical devices continues to shrink. A measurement technique was developed that is capable of achieving this level of sensitivity.

 
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Supergel System Cleans Radioactively Contaminated Structures

  • Magazine Article
  • TBMG-34732
Published 2019-07-01 by Tech Briefs Media Group in United States

A system was developed that can remove radioactive cesium contamination from porous structures such as brick and concrete that are hard to clean, as well as contamination from metal surfaces. The Supergel system focuses on rapid response, capturing as much of the contamination as possible, as quickly as possible, and filling a technology gap immediately.