共搜索到5431条信息，每页显示10条信息，共544页。用时：0小时0分0秒756毫秒
J. Cent. South Univ. (2019) 26: 2930-2942 DOI: https://doi.org/10.1007/s11771-019-4225-1 Modified constitutive model and workability of 7055 aluminium alloy in hot plastic compression ZHANG Tao(张涛... 2019 Abstract: To obtain flow behavior and workability of 7055 aluminium alloy during hot deformation, hot compression tests at different temperatures and strain rates are conducted. True stress......
melt-treatment. The axial-symmetry isothermal hot compression test has been carried out by means of he Gleeble-1500 type dynamic hot/mechanical simulation testing machine. The deformation temperature...; Abstract: The isothermal......
and Engineering A, 2012, 551: 25–31. [9] WU B, LI M. The flow behavior and constitutive equations in isothermal compression of 7050 aluminum alloy [J]. Materials Science and Engineering A, 2012, 542...J. Cent. South Univ. (2016) 23: 497-507 DOI: 10.1007/s11771-016-3095-z Modeling on dynamic recrystallization of aluminium alloy 7050 during hot compression based on cellular automaton LI Jun-chao(李军......
and Technology, Shanghai 200093, China) Abstract: The flow stress behavior of Cu-Ni-Si-P-Cr alloy during hot compression deformation was studied by isothermal compression test at Gleeble-1500D... mechanisms of Cu-Ni-Si-P-Cr alloy were analyzed. The results show that the dynamic recrystallization occurs during hot compression deformation. The characteristics of the true stress-true strain curve......
Comparative modeling of gas transport in isothermal chemical vapor infiltration process of C/SiC composites WEI Xi(魏 玺), CHENG Lai-fei(成来飞), ZHANG Li-tong(张立同), XU Yong-dong(徐永东), ZENG Qing... Abstract: Two comparative models taking into account of momentum, energy and mass transport coupled with chemical reaction kinetics were proposed to simulate gas transport in isothermal CVI reactor......
;Microstructures of as-extruded AZ80-0.2Y alloy and after isothermal treatment for different time 对580 ℃等温20 min后试样进行扫描电镜观察,并对成分进行EDS线扫分析,结果如图5所示.由图5可知,经半固态等温处理后,晶界出现液相较多,并在水淬的过程中由于快速凝固而形成网状枝晶(见图5(e)).经...;Average grain size and shape factor at different time during isothermal heat-treatment 大功率感应加热制备的半固态组织演变相对于小功率感应加热的半固态组织要稍作提前.在560 ℃时,晶内的点状液池已经开始汇集形成条状液池；升温至570 ℃时,晶内的条状液池数量增多；580 ℃时,条状液相的宽度和长度都有所增加；当升温至590......
Isothermal section of Mg-Zn-La system in Mg-rich corner at 400 ℃ HUANG Ming-li(黄明丽)1, LI Hong-xiao(李洪晓)1, REN Yu-ping(任玉平)1, DING Hua(丁桦)1, HAO Shi-ming(郝士明)1, CHEN Hui(陈辉)2 1. School... diffraction(XRD), and the isothermal section at 400 ℃ was established. The results show that there exists a ternary compound (T-phase) with a constant La content and changable Mg/Zn contents in the Mg-Zn-La......
Microstructure evolution of processed Mg-Al-Zn alloy by equal channel angular extrusion in semi-solid isothermal treatment JIANG Ju-fu(姜巨福), LUO Shou-jing(罗守靖) School of Materials Science... extrusion(ECAE) in semi-solid isothermal treatment was investigated. The results show that with increasing semi-solid isothermal treatment temperature, the α phase solid grain size of processed Mg-Al......
Investigation on the Moldability of HDDR NdFeB Bonded Magnet Prepared by Compression Molding Method 张正义1,韩景智1,李涛1,肖耀福1,李智伟2,孙爱芝1 (1.Department of Materials, University of Science and Technology... bonded magnets with complicated shape or with large geometric size by compression molding due to the friction among magnetic powder grains and between magnetic powder and the die wall, which reduces......
and Engineering, Henan University of Science and Technology, Luoyang 471003, China) Abstract: The flow stress behavior of Cu-2.0Ni-0.5Si-0.03P alloy during hot compression deformation was studied by isothermal compression test at Gleeble-1500D thermal-mechanical simulator at the temperature ranging from 600 ℃ to 800 ℃ and at the strain rate from 0.01 /s to 5 /s. The results show that the flow stress......
