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Improvement of Wear Resistance of Magnesium Alloy AZ91HP by High Current Pulsed Electron Beam Treatment JIANG Li-min1,ZHOU Ji-yang1,DONG Chuang1,GAO Bo1,ZOU Jian-xin1,HAO Sheng-zhi1 (1.State Key... of magnesium alloy AZ91HP (9wt%Al, 0.5wt%Zn, 0.5wt%Mn, Mg remaining percentage) by high current pulsed electron beam (HCPEB) treatment was studied in this paper. The secondary phase Mg17Al12 is nearly......
Article ID: 1003-6326(2005)05-0978-07 Improvement of wear resistance of AZ31 and AZ91HP by high current pulsed electron beam treatment GAO Bo(高 波)1, 2, HAO Sheng-zhi(郝胜智)2, DONG Chuang(董... by a high current pulsed electron beam(HCPEB). The results show that the cross-sectional microhardness of treated samples increases not only in the heat affected zone(HAZ), but also beyond HAZ, reaching over......
Numerical simulation of thermal-mechanical process of Al-Si-Pb alloy treated by high current pulsed electron beam L? Xiao-xia(吕晓霞), LI Rong-guang(李荣广), AN Jian(安 健) Key Laboratory... and improvement of hardness and wear resistance. Key words: Al-Si-Pb alloy; high current pulsed electron beam; numerical simulation; crater; quasistatic stress 1 Introduction The liquid immiscible......
Surface modification of Al-Pb alloy by high current pulsed electron beam LU You(陆 有), LI Shi-long(李世龙), AN Jian(安 健), LIU Yong-bing(刘勇兵) Key Laboratory of Automobile Materials, Ministry... current pulsed electron beam and the microstructure, hardness and tribological characteristics were characterized by scanning electron microscopy, electronic microanalysis probe microanalysis, Knoop......
Residual Stress Removal Under Pulsed Electric CurrentSiqi Xiang,Xinfang ZhangState Key Laboratory of Advanced Metallurgy, School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing摘 要:The effect of a pulsed electric current on the residual stress evolution of metal materials has been investigated.It was found......
Optimizing pulsed current gas tungsten arc welding parameters of AA6061 aluminium alloy using Hooke and Jeeves algorithm S. BABU1, T. SENTHIL KUMAR2, V. BALASUBRAMANIAN1 1. Centre for Materials... is frequently constant current gas tungsten arc welding (CCGTAW), it resulted in grain coarsening at the fusion zone and heat affected zone(HAZ). Hence, pulsed current gas tungsten arc welding(PCGTAW......
Improved Corrosion Resistance of Magnesium Alloys AZ31 and AZ91HP by High Current Pulsed Electron Beam Treatment ZHOU Ji-yang1,DONG Chuang2,GAO Bo1,HAO Sheng- zhi2 (1.Department of material... treatment of magnesium alloys AZ31 and AZ91HP by a high current pulsed electron beam (HCPEB)was investigated in the present paper. The corrosion resistance of treated samples was tested in a 5% (wt......
Thickness of metallic layers from pulsed eddy-current nondestructive measurements ZHAO Liang(赵亮), CHEN Deng-feng(陈登峰), LU Ying(卢英), LI Chang-hua(李昌华) (Department of Information and Automation, Xi’an University of Architecture and Technology, Xi’an 710055, China) Abstract: By using pulsed eddy-current (PEC), a neural network was adopted to forecast the thickness of metal and the distance between......
Effect of the duty cycle of pulsed current on nanocomposite layers formed by pulsed electrodepositionM.Aliofkhazraei1,Sh.Ahangarani2,A.Sabour Rouhaghdam11. Department of Materials Engineering... layers were analyzed by scanning electron microscopy, atomic force microscopy, microhardness, and Tafel polarization tests.The effect of the duty cycle of pulsed current or concentration of carbon......
because of the electromagnetic force produced by the interaction of the pulsed magnetic field and the melt. When the pulsed magnetic field B is imposed to the melt, an induction current I will be produced... Microstructure refinement of AZ91D alloy solidified with pulsed magnetic field WANG Bin(汪 彬), YANG Yuan-sheng(杨院生), ZHOU Ji-xue(周吉学), TONG Wen-hui(童文辉) Institute of Metal Research, Chinese......