共搜索到23703条信息,每页显示10条信息,共2371页。用时:0小时0分0秒484毫秒
STRAIN RATE SENSITIVITY OF ULTRAFINE-GRAINED Cu WITH NANOSIZED TWINS L. Lu1,L.X. Liu1,X.H.Chen1 (1.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China) Abstract:An ultrafine-grained Cu sample with a high density of growth twins was synthesized by means of pulsed electrodeposition technique. The strain rate......
Variation of hydraulic gradient in nonlinear finite strain consolidationXIE Xin-yu(谢新宇)1, 2, 3, HUANG Jie-qing(黄杰卿)1, 2, 3, WANG Wen-jun(王文军)2, LI Jin-zhu(李金柱)2(1. Research Center of Coastal... is studied for decades. In the consolidation field, hydraulic gradient is yet to be investigated as an important hydraulic variable. So, the variation of hydraulic gradient in nonlinear finite strain......
of the samples fatigued at different strain amplitudes and then annealed at a comparatively lower temperature of 200 ℃; for instance, the recovery process of dislocation structures induced by fatigue at lower strain amplitude is mainly determined by the disappearance of vacancies and the annihilation of dislocations of opposite sign, while the polygonization recovery dominates at higher strain......
, China) Abstract:Effect of carbon, compound RE, quenching temperature, pre-strain and recovery temperature on shape memory effect (SME) of Fe-Mn-Si-Ni-C-RE shape memory alloy was studied by bent... and the relative shape recovery ratio could be increased to more than 40% after 3-4 times thermal training. The relative shape recovery ratio decreased evidently depending on rising of pre-strain. Furthermore......
model for a high strain range. To this end, Al-Mg alloy with distinctly different grain sizes (~100 μm vs ~1 μm) was cold-rolled to a true strain of ~1.6 and the resulting dislocation densities were compared by using transmission electron microscopy. A minor difference revealed by the measurements suggested a violation of the Ashby’s model. This effect was attributed to a partial relaxation of strain......
Relationship between mechanical properties and grain size of AZ80 at 350 ?C under different strain rates QUAN Guo-zheng(权国政), SONG Tao(宋涛), ZHOU Yi-jun(周一俊), WANG Feng-biao(王凤彪), ZHOU... size of 240 ?m becomes refined to about 120, 110, 94 and 50 ?m after upsetting at 350 ?C under strain rates of 0.01, 0.1, 1 and 10 s-1 respectively. The changes in the mechanical properties according......
metallurgy, a novel technology for the detoxification of chromium-containing slag by Achromobacter sp. CH-1 and chromium recovery was proposed. Strain CH-1 cell morphology before and after Cr...-containing slag is shown in Fig.1. Fig.1 Flowchart of the detoxification chromium recovery of chromium- containing slag 2.4 Scanning electron microscopy of strain CH-1 Bacterial cells after Cr......
, ChinaSchool of Sciences, Northeastern University, Shenyang 110004, China摘 要:<正> The mechanical behavior and the effect of pre-strain on recovery behavior... at different temperature ranges, the deformation curves in different temperature range can be classified into four kinds. The start temperature of recovery increases with the increase of pre-strain......
J. Cent. South Univ. Technol. (2009) 16: 0416-0421 DOI: 10.1007/s11771-009-0070-y Isolation, identification and characterization of cadmium-resistant Pseudomonas aeruginosa strain E1 ZENG...; Abstract: Strain E1 with resistance to 18 mmol/L cadmium (Cd), isolated from Cd-contaminated soil was identified by morphological observation......
an important role in the high-strain-rate deformation process. Key words: microstructures; copper liners; high-strain-rate deformation; dynamic recovery and recrystallization  .... This observation result indicates that a typical dynamic recovery and recrystallization occur during plastic deformation process at high strain rate. Fig.7 TEM bright-field image showing cell dislocation......