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Creep properties and controlled creep mechanism of as-cast Mg-5Zn-2.5Er alloy LI Han(李 晗), DU Wen-bo(杜文博), LI Jian-hui(李建辉), LI Shu-bo(李淑波), WANG Zhao-hui(王朝辉) School of Materials Science... to dislocation creep mechanism (from n<3 to n>3), arising in the steady-stage creep rate value of 2.89×10-9 s-1. Key words: magnesium alloy; as-cast magnesium alloy; creep mechanism; erbium  ......
mechanism for uranium dioxide with grain size of 23.8 μm. Key words: uranium dioxide pellet; grain size; creep property; creep mechanism  ... creep as the controlling mechanisms for d=10-27 μm. In contrast, FROST et al[11] and SOLOMON[12] proposed Coble grain boundary diffusion creep as the dominant mechanism for uranium dioxide material......
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Creep mechanism of Mg-Nd-Zn-Zr alloy at ambient temperature ZHONG Ying-ying(仲莹莹)1, WU Yi-ping(吴懿萍)1, XU Shu-fang(许树芳)2, GUO Tian-cai(郭天才)1, 2, ZHANG Xin-ming(张新明)1 1. School of Materials Science...> Abstract: Magnesium alloy’s creep stress exponent and creep mechanism at the room temperature were analyzed by TEM. Relationship among strain, stress......
Creep mechanism of as-cast Mg-6Al-6Nd alloyWU Yufenga,b,DU Wenbob,ZHANG Yinanb,and WANG Zhaohuib a Institute of Recycling Economy,Beijing University of Technology,Beijing 100124,China b College of Materials Science and Engineering,Beijing University of Technology,Beijing 100124,China摘 要:The creep mechanism of as-cast Mg-6Al-6Nd alloy was studied.The......
J. Cent. South Univ. (2021) 28: 954-967 DOI: https://doi.org/10.1007/s11771-021-4656-3 Non-linear creep damage model of sandstone under freeze-thaw cycle LI Jie-lin(李杰林)1, 2, 3, ZHU Long-yin(朱龙胤)1... Nature 2021 Abstract: To study rock damage characteristics under long-term freeze-thaw cycles and loads, rock freeze-thaw and creep damage factors were defined based on nuclear magnetic resonance......
; mechanical properties; creep mechanism  ... mechanism for alloys. The steady-state creep rate () can be explained by the following power-law relationship[13]:  ......
. The results show that the dominant creep mechanism in this alloy is dislocation creep with minor contribution of the grain boundary sliding. Creep failure took place by the nucleation, growth and coalescence of creep cavities on the boundaries predominantly oriented perpendicular to the applied stress. Increasing amount of cavitated boundaries with time of creep exposure supports the mechanism......
as the prominent creep mechanism, while n=4-6 is generally reported for dislocation creep [1]. The stress exponent n value suggests that the compressive creep behavior of the peak-aged samples of Mg-5... Compressive creep behavior of Mg-Sn binary alloy WEI Shang-hai(魏尚海), CHEN Yun-gui(陈云贵)?, TANG Yong-bai(唐永柏), LIU Ming(刘 明), XIAO Su-fen(肖素芬), ZHANG Xiao-ping(章晓萍), ZHAO Yuan-hua......
. The corresponding physical models were established for analyzing the microstructure evolution and creep mechanism. The results show that four second phasesare found in Mg-5.5%Zn-(0.7%,1.5%,3.5%,7.5%)Y alloys...Microstructure and tensile creep resistance ofMg-5.5%Zn-(0.7%, 1.5%, 3.5%, 7.5%)Y alloysCHEN Gang(陈刚), ZHANG Yan-bin(张艳斌), XIA Wei-jun(夏伟军), CHEN Ding(陈鼎)(College of Materials Science and Engineering......