نتایج جستجو برای: powder metallurgy technique

تعداد نتایج: 656742  

Journal: :Journal of the Surface Finishing Society of Japan 1994

Journal: :Metals 2021

This paper reviewed several recent progresses of the new powder metallurgy technology known as flake (FPM) including different processing routes, conventional FPM (C-FPM), slurry blending (SB), shift-speed ball milling (SSBM), and high-shear pre-dispersion SSBM (HSPD/SSBM). The name was derived from use metal powders obtained by low-speed (LSBM) spherical powder. In this case, uniformity reinfo...

2016
A. Senthil Kumar S. Ayyanar K. Ilayaraja P. Loganathan

Aluminum-based metal matrix composite (MMC) materials are used in the design of ground transportation vehicles and aircraft. Compared with conventional, unreinforced alloys, composite materials usually exhibit higher strength, both at ambient and elevated temperatures, as well as good fatigue strength and wear resistance. MMCs could be produced by variety of methods such as Stir cast, Liquid In...

2010

A powder metallurgy route to the fabrication of metallic glass foam is introduced. The method involves consolidating metallic glass powder blended with blowing agent particulates to produce expandable precursors, capable of yielding foams with porosities as high as 86%. The foams are found to inherit the strength of the parent metallic glass, and to be able to deform heavily toward full densifi...

2016
P. Radha

While preparing the composite preform in the powder metallurgy Lab, the various defects due to porosity, open crack and residual stresses are possible. This may lead to poor life and strength of materials. It is difficult to predict the defects in the form of pores physically in the powder metallurgy Lab. To simplify this kind of problem, the Scanning Electron Microscope (SEM) images are genera...

Journal: :Journal of Nuclear Materials 2022

Aluminum (Al) matrix composites with boron carbide (B4C) reinforcements were fabricated by solid state powder metallurgy using the hot-pressing process. Composite materials at different volume fractions of B4C particles, ranging from 2% to 12%, evaluate impact on thermal and mechanical properties composite materials. Thermal properties, such as conductivity (TC) coefficient expansion (CTE), mea...

2006

Powder Metallurgy (PM) has advanced considerably during the last seventy years. This paper describes the conventional press & sinter process used for manufacturing highly sophisticated net-shape metal components. It highlights process advantages and the effects derived from material or process choices. Those choices must be understood when designing PM components since they significantly effect...

Journal: : 2021

The article explains the term powder metallurgyand defines main differences from classical methods of metallurgy. Historical aspects development metallurgy technologies since ancient times are described. technological and their application for production modern products presented. areas various types listed

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