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were also observed and analyzed. It is found that the increase of either pre-loaded stress or heating-rate decreases the failure temperature. Metallographic analysis shows that high heating-rate may...: brass H62; pre-loaded stress; heating rate; failure temperature; local thermal inconsistency
2010
Abstract: The response and failure of magnesium alloy AZ31 specimens subjected to different pre-loaded-stress levels and heating rates were investigated with a Gleeble-1500 thermo... of the material.
Key words: magnesium alloy AZ31; pre-loaded stress; heating rate; failure temperature; local thermal inconsistency
1 Introduction
It is known that the high and rapid increase......Effect of heating-rate on failure temperature of pre-loaded magnesium alloy
AI导读
来源: 《中国有色金属学报(英文版)2010年增刊第2期》——罗吉 陈斌 袁权 张丁非 权国政
J. Cent. South Univ. (2020) 27: 2899-2913 DOI: https://doi.org/10.1007/s11771-020-4517-5 Brazilian disc test study on tensile strength-weakening effect of high pre-loaded red sandstone under..., which is closely related to the coupled stress state of deep rock mass under high pre-static load and dynamic disturbance. To reveal the mechanism of rock tensile failure caused by this coupled......
Magnesium stress corrosion cracking N. Winzer1, A. Atrens1, 2, W. Dietzel3, G. Song1, K. U. Kainer3 1. Materials Engineering, The University of Queensland, Brisbane, Australia 2. Swiss Federal...> Abstract: The significant positive green environment influence of magnesium alloy usage in transport could be compromised by catastrophic fast fracture caused by stress corrosion cracking (SCC......
Calculation and analysis of stress in strata under gob pillarsYANG Jing-xuan(杨敬轩)1, 2, LIU Chang-you(刘长友)1, 2, YU Bin(于斌)1, 3, WU Feng-feng(吴锋锋)1, 2(1. School of Mines, China University of Mining... Company, Datong 037003, China)Abstract:Aiming at the difficulty in stress analysis for strata under pillars with actual bearing conditions, an approach was proposed to apply multi-sectional linear......
J. Cent. South Univ. Technol. (2009) 16: 0085-0090 DOI: 10.1007/s11771-009-0014-6 Measurements of in situ stress and mining-induced stress in Beiminghe Iron Mine of China OUYANG Zhen-hua(欧阳振华)1...: In order to obtain the distribution rules of in situ stress and mining-induced stress of Beiminghe Iron Mine, the stress relief method by overcoring was used to measure the in situ stress, and the MC......
Effect of CaO content on residual stress of CAS glass-ceramic XIE Jun, CHENG Jin-shu, LONG Xin-jiang, YANG Shu-zhen Key Laboratory of Silicate Materials Science and Engineering, Wuhan University... the residual stress in the system. Therefore X-ray diffraction (XRD) ‘sin2ψ’ method was used to calculate the residual stress in samples containing various contents of CaO. The relationship between......
caused by the pre-loaded stress in path A (tensile stress is initially applied, followed by shear stress) is always greater than that caused by the post-loaded stress in path C (shear stress is initially..., from the perspective of deformation, the primary effect of stress path and the recency effect of strain path are dialectically unified. The pre-loaded stress or strain has a corresponding smaller......
Is Terzaghi’s effective stress a stress variable under seepage conditions?LEI Guo-hui(雷国辉)1, CHIU Abraham Chung Fai(赵仲辉)1, NG Charles Wang Wai(吴宏伟)1, 2(1. Key Laboratory of Geomechanics... of Science and Technology, Hong Kong, China)Abstract:From the continuum mechanics perspective, an attempt was made to clarify the role of Terzaghi’s effective stress in the theoretical analysis of saturated......
Numerical Simulation of Temperature and Stress Fields of Ti-Alloy Thin-well Barrel during Quenching Process LI Yan-zeng1,WU Kun1,YAN Mu-fu1 (1.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China) 摘要:The mathematical models have been established to describe the temperature and stress profiles in Ti6Al4V cylinder during quenching. The residual stress......