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-yang HE3, Yuan-kui CAO1, Min SONG1, Bin LIU1, Si-hui OUYANG1 1. State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China; 2. College of Biology, Hunan University....%) were prepared via powder metallurgy and hot working. The results indicate that the Ti-Zr alloys exhibit Zr-rich and Zr-lean areas with the same α-phase structure, and the Zr-rich area shows a slightly......
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and tribological performances of space docking Cu-based friction material made by powder metallurgy technology were investigated. The results indicate that the microstructure becomes more homogeneous... denote that materials possess excellent tribological performances in vacuum. Key words: graphite; MoS2; powder metallurgy; space docking; friction material 空间对接用摩擦材料是航天器间交会对接的关键部件之一,它应具备对接过程中的制动,离合及安全保护功......
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Reaction mechanism in high Nb containing TiAl alloy by elemental powder metallurgy WANG Yan-hang(王衍行)1, LIN Jun-pin(林均品)1, HE Yue-hui(贺跃辉)2, WANG Yan-li(王艳丽)1, LIN Zhi(林 志)1, CHEN Guo-liang(陈国良)1 1. State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China; 2. State Key Laboratory of Powder Metallurgy, Central South......
; debinding; complex powder metallurgy part 1 Introduction Powder metallurgy (PM) process is an economical net-shape manufacturing technique. Unfortunately, conventional PM is not capable of producing... with an average particle size of 75 μm was used as base material. Ni powder (＜75 μm), Mo powder (＜75 μm) and graphite powder (＜75 μm) were used as alloying elements. Compositions(mass fraction) of the mixed......
words: Cu-based friction material; nano-SiO2; friction; wear; powder metallurgy ...-coated nano-SiO2 (Cu/nano- SiO2) were obtained by powder metallurgy processes, respectively. The tribological properties of the two types of friction materials were investigated by using inertia......
Article ID: 1003-6326(2005)05-1067-05 Joining of SiCp/Al composites by insert powder layers HUANG Ji-hua(黄继华), DONG Yue-ling(董月铃), WAN Yun(万 云), ZHANG Jian-gang(张建纲), ZHOU Guo-an(周国安... to reactive diffusion bond SiCp/6063 MMC. The results show that SiCp/6063 MMC joints bonded by the insert layer of the mixed Al-Si powder have a dense joining layer with a typical hypoeutectic......
in powder metallurgy industry. Under this circumstance, metal powder is often considered a kind of time-independent, elasto-plastic and compressible material[1,2]. Quite a few different models have been...; Abstract: The constitutive relation of powder material was derived based on the assumption that metal powder......
