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Article ID: 1003-6326(2005)06-1219-07 Electrode degradation mechanism during resistance spot welding of zinc coated steel using Cu-TiB2 electrodes DONG Shi-jie(董仕节)1, ZHOU Norman2, CHENG... because of the higher thermal strength; therefore, it is believed that wear is the only mechanism for the composite electrode deterioration. However, both wear and plastic deformation are responsible......
钛合金片层组织两相区变形时的流动软化机理分析宋鸿武1,张士宏1,程明1,李臻熙2,曹春晓3,包春玲4(1.辽宁省沈阳市科学院金属研究所2.北京航空材料研究院3.北京航空材料研究院,北京1000954.沈阳铸造研究所钛合金部)摘 要:钛合金片层组织在两相区变形时流动应力随应变的增加普遍表现为快速硬化和持续软化的特征.为了研究该流动软化的机理,采用等温热压缩实验研究了TC11合金片层组织在温度890-995℃和应变速率0.01-10s-1范围内的热变形行为.理论计算表明α/β片层界面(α片层内孪晶界)产生的Hall......
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J. Cent. South Univ. (2017) 24: 2894-2905 DOI: https://doi.org/10.1007/s11771-017-3703-6 Numerical investigations on mechanical characteristics and failure mechanism of outwash deposits based... the complexity of mechanical characteristics and failure mechanism. In this work, random meso-structure of outwash deposits was constructed by the technique of computer random simulation based on characteristics......
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. The steady-state type curves indicate that softening is sufficiently fast to balance the rate of work hardening and mechanism like dynamic recovery or super-plastic deformation is suggested. Flow softening... evolution mechanism can be dynamic recovery accompanied by geometric dynamic recrystallization at large strain or discontinuous dynamic recrystallization, both of which can cause continuous flow softening......
and shows mainly the viscoplasticity deformation characteristic of the solid skeleton composed of grain granules. The deforming mechanism of semi-solid metal in thixoforming process can be understood... Deformation mechanism and forming properties of 6061Al alloys during compression in semi-solid state SHANG Shu-zhen(尚淑珍)1, LU Gui-min(路贵民)1, TANG Xiao-ling(唐小玲)1, ZHAO Zu-xin(赵祖欣)1, WU Cheng-ming......
Bonding mechanism of ultrasonic wedge bonding of copper wire on Au/Ni/Cu substrate TIAN Yan-hong(田艳红)1, WANG Chun-qing(王春青)1, Y. Norman ZHOU2 1. State Key Laboratory of Advanced Welding...; Abstract: The ultrasonic wedge bonding with d25 μm copper wire was achieved on Au/Ni plated Cu substrate at ambient temperature. Ultrasonic wedge bonding mechanism was investigated......
Article ID: 1003-6326(2005)06-1346-05 Anti-oxidation mechanism of SiC-B4C-C composites LIU Qi-cheng(刘其城)1,2, XU Xie-wen(徐协文)1,2, HUANG Qi-zhong(黄启忠)2, HUANG Bai-yun(黄伯云)2 (1... loss less than 1% within the temperature range from 900 to 1100℃ for 10h. Anti-oxidation mechanism was also discussed from the viewpoint of thermodynamics, excellent anti-oxidation property of materials......
J. Cent. South Univ. (2018) 25: 1447-1463 DOI: https://doi.org/10.1007/s11771-018-3839-z Mechanical properties and energy mechanism of saturated sandstones NIU Shuang-jian(牛双建)1, 2, 3, GE Shuang... with a constant. Saturation reduces the total absorption energy, dissipated energy, and elastic strain energy of rock samples. Key words: post-peak; saturation; strength property; damage mechanism; energy Cite......
