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of the welded structure containing the fatigue crack mainly depended on the toughness of the low strength zone. Key words:fatigue crack growth; crack path deviation; electron beam weld-ing; inhomogeneity...ON FATIGUE CRACK PATH DEVIATION AT ELEVATED TEMPERATURE IN ELECTRON BEAM REPAIRED WELDMENTS OF TURBINE DISK L.H.Li1,Y.H.Zhang1,X.A.Zhang2,H.Y.Zhao3,H.Q.Zhang3 (1.School of Mechanical Engineering......
; Structure modulation doped GaAs 3 RESULTS AND DISCUSSION Fig.2 shows the plot of electron mobility and concentration of modulation doped GaAs at 77K as a function of spacer thickness. As it can...×105cm2/(V·s) at the beginning. Then the material structure and growth conditions have been optimized via the results of Hall measurements. The 77K electron mobility increases to 1.85×105cm2/(V·s......
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......
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A 12R long-period stacking-ordered structure in a Mg-Ni-Y alloyCheng Liu1,Yuman Zhu2,Qun Luo1,Bin Liu1,Qian Li11. State Key Laboratory of Advanced Special Steels,Shanghai Key Laboratory of Advanced... was investigated by electron diffraction and high-angle annular dark-field scanning transmission electron microscopy. Results show that the 12 R has a trigonal lattice(a = b = 1.112 nm, c = 3.126 nm, α......
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: Focusing on effect of carbon content and structure on reducibility LV Jin-fang(吕晋芳)1, 2, TONG Xiong(童雄)1, 2, ZHENG Yong-xing(郑永兴)2, XIE Xian(谢贤)1, 2, HUANG Ling-yun(黄凌云)1, 2 1. Faculty of Land Resource... structure had an important effect on its reduction. Key words: relative high concentration Cr(VI); reduction; ZVI powder; carbon content; carbon structure Cite this article as: LV Jin-fang, TONG Xiong......
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A transmission electron microscopy study of microscopic causes for localized-corrosion morphology variations in the AA7055 Al alloyX.B.Yang1,2,J.H.Chen1,G.H.Zhang1,L.P.Huang1,T.W.Fan1,Y.Ding1,X.W.Yu11. Center for High-Resolution Electron Microscopy, College of Materials Science and Engineering, Hunan University2. Department of Applied Physics, School of Physics and Electronics, Hunan University摘......
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