共搜索到12469条信息，每页显示10条信息，共1247页。用时：0小时0分0秒623毫秒
......
were run in this test range. It seems to us a srnall amount of α-Cr will be not harmful for creep crack propagation resistance, which is critical for disk application in aircraft and land-based gas...CREEP CRACK GROWTH BEHAVIOR OF ALLOY 718 DURING HIGH TEMPERATURE EXPOSURE Y.P.Zeng1,X.S.Xie1,J.X.Dong1,M.C.Zhang1 (1.Department of Material Science, University of Science and Technology Beijing......
of study. Also for high safety coefficient, crack growth direction was chosen to be the direction of the least growth resistance of the crack growth in a specimen. Fig.1 Optical microstructure of Ti40... Effect of stress ratio on fatigue crack growth of Ti40 alloy WU Huan(吴欢)1, 2, ZHAO Yong-qing(赵永庆)1, ZENG Wei-dong(曾卫东)2 1. Titanium Research Center, Northwest Institute for Non-ferrous Metal......
. A closed loop was designed by DC stable voltage power, fixed resistance and variable resistance of specimen (caused by crack propagation) and connecting copper lines. A low and a high-frequency voltage...J. Cent. South Univ. Technol. (2008) 15(s1): 402-405 DOI: 10.1007/s11771-008-388-x In-plane shear (ModeⅡ) crack sub-critical propagation of rock at high temperature RAO Qiu-hua(饶秋华), XIE Hai......
. And the results show that the under-aged sample possesses the best resistance to fatigue crack propagation and the most tortuous and bifurcated crack path. For all samples, the fatigue crack growth rate..., the fatigue resistance of aluminum alloys is usually poor. Therefore, the study on fatigue properties of aluminum alloys is necessary. As a result, fatigue crack growth behavior and fatigue life prediction......
ratio and silica fume content [1-7]. Regarding the coarse aggregate type and size, some studies revealed that the crack resistance of concrete consisting of gravel was higher than that of concrete...J. Cent. South Univ. Technol. (2011) 18: 1693-1699 DOI: 10.1007/s11771-011-0890-4 Critical crack tip opening displacement of different strength concrete WANG Bing(王冰)1, 2, ZHANG Xiu-fang(张秀芳)1......
J. Cent. South Univ. (2017) 24: 423-431 DOI: 10.1007/s11171-017-3444-1 Effects of water intrusion and loading rate on mechanical properties of and crack propagation in coal–rock combinations CHEN... storage in collieries in arid regions requires knowledge of the effect of water intrusion and loading rate on the mechanical properties of and crack development in coal–rock combinations. Fifty-four......
Hydration Process and Crack Tendency of Concrete Based on Resistivity and Restrained Shrinkage CrackMUAZU Bawa Samaila1,2,魏小胜1,WANG Lei11. School of Civil Engineering and Mechanics, Huazhong University of Science and Technology2. Department of Civil Engineering, College of Engineering, Hassan Usman Katsina Polytechnic摘 要:Hydration process, crack......
Effect of additive on corrosion resistance of NiFe2O4 ceramics as inert anodes XI Jin-hui(席锦会)1, XIE Ying-jie(谢英杰)2, YAO Guang-chun(姚广春)2, LIU Yi-han(刘宜汉)2 1. School of Materials Science...; Abstract: In order to improve the corrosion resistance of NiFe2O4 ceramics as inert anode, additive V2O5 was added to raw materials NiO and Fe2O3. The inert anodes of nickel-ferrite ceramics were prepared......
of the three alloys to solidification crack are very different. The resistance to solidification crack of ZL101 alloy is the greatest and that of 6082 alloy is the smallest, with that of 5083 alloy in between... Solidification crack susceptibility of aluminum alloy weld metals LIU Ren-pei(刘仁培)1, DONG Zu-jue(董祖珏)2, PAN Yong-ming(潘永明)2 1. College of Materials Science and Technology, Nanjing University......
