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Preparation of AZ91 alloy by powder metallurgy method JIANG Hai(姜 海)1, HE Xin-bo(何新波)1, QU Xuan-hui(曲选辉)1,2, I. S. HUMAIL2 , WANG Xi-tao(王西涛)2 1. School of Materials Science and Engineering... Received 28 July 2006; accepted 15 September 2006 Abstract: Magnesium alloy AZ91 was prepared by powder metallurgy method, and the effect of sintering temperature on the densities and microstructures......
Structural Analysis and Electrical Property of Tungsten Bronze Prepared by Rare Earth Gaseous Permeation 韦永德1,陈刚1,李中华1,苏铭汉1,李昕1 (1.Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China) Abstract:The cubic sodium tungsten bronzes, NaxWO3(x=0.854 and 0.814)were prepared by rare earths gaseous permeation method. Structural analysis was carried out by Rietveld......
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Development and progress on hydrogen metallurgyJue Tang1,Man-sheng Chu2,Feng Li1,Cong Feng1,Zheng-gen Liu1,Yu-sheng Zhou11. School of Ferrous Metallurgy, Northeastern University2. State Key Laboratory of Rolling and Automation, Northeastern University摘 要:Hydrogen metallurgy is a technology that applies hydrogen instead of carbon as a reduction agent......
; 2. Hunan Metallurgy Material Research Institute, Changsha 410014, China) Abstract: The tungsten nozzle with inner diameter of 8 mm, length of 30 mm and wall thickness of 16.5 mm was produced...] VOLKER P, BERTHOLD Z, PRACHAI N, ROBERT R, AXEL V W, JUERGEN H. Development of a powder metallurgy process for tungsten components[J]. Fusion Engineering and Design, 2008, 83(10/12): 1517-1520. [12......
density alloys [J]. The Inter J of Powder Metallurgy, 1999, 21(3): 9-13.(in Chinese) [15]YAN J W, ZHOU J C, LU S Q, et al. The development of tungsten high density alloys investigation [J]. Metals... reach above 96%,and 90W-4Ni-2Fe-3.8Mo-0.2RE alloy possesses the best integrated properties, its hardness is HRC35 and its relative density is 98%. Key words: tungsten high density alloys; nano......
A NEURAL NETWORK FOR WELD PENETRATION CONTROL IN GAS TUNGSTEN ARC WELDING J.Q. Gao1,C.S. Wu1,Y.H. Zhao1 (1.Institute of Materials Joining, Shandong University, Jinan 250061, China) Abstract:Realizing of weld penetration control in gas tungsten arc welding requires establishment of a model describing the relationship between the front-side geometrical parameters of weld pool and the back-side......
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Induction plasma spheroidization of tungsten and molybdenum powders JIANG Xian-Liang (蒋显亮)1, M.Boulos2 1. Institute of Surface and Coatings Technology, School of Materials Science and Engineering...; Abstract: The melting, evaporation and oxidation behaviors as well as the solidification phenomena of tungsten and molybdenum......
