共搜索到21457条信息,每页显示10条信息,共2146页。用时:0小时0分0秒500毫秒
. 关键词:纯钛;表面机械碾磨处理;梯度结构表层;拉伸性能;韧窝;断裂机制 中图分类号:TG146.23 文献标志码:A Microstructure and mechanical behavior of pure titanium processed by surface mechanical... of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China) Abstract: Surface mechanical grinding treatment (SMGT) was used to fabricate a gradient nano-micron-structured surface layer......
in directional solidification processing, such as thermal stabilization time, growth rate, temperature gradient and cooling rate, have an important influence on the microstructure and mechanical...]. Journal of Crystal Growth, 2007, 304: 281-286. [14] BUCHMANN M, RETTENMAYR M. Microstructure evolution during melting and resolidification in a temperature gradient [J]. Journal of Crystal Growth, 2005......
......
, ZHANG Ju-hui. Determining the temperature measurement of temperature gradient on the ZMLMC directional solidification apparatus and the effect of temperature gradient on solidification microstructure...; 文献标识码:A Effect of Al-Cu alloys diameter on thermal gradient and primary dendrite arm spacing during directional solidification QU Min, LIU Lin, TANG Feng-tao, FU Heng......
......
......
during both one-step and two-step homogenization treatments. Key words: 7xxx alloy; AA7150 alloy; homogenization; recrystallization; Al3Zr dispersoids; concentration gradient 1 Introduction... was homogenized at 430 °C for 20 h, and then slowly heated to 470 °C and held for 10 h. After the homogenization treatment, the samples were quenched in room temperature water. 2.3 Microstructure analysis......
Microstructure and Mechanical Properties of Tic/NiCrMo Cermets Produced by Liquid Sintering Technique Jing BI1,Dehui GUAN1,Yue LIU1,Baohai YU1 (1.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015) 摘要:The effect of M additions on the microstructure and mechanical properties of TiC-based cermet produced by li oquid sintering method of powder metallurgy was investigated......
℃. 关键词:镁合金;轧制;有限元;温度梯度 中图分类号:TG335.5, TP391.9 文献标志码:A Simulation and confirmatory experiment on rolling of magnesium alloy sheets with temperature gradient ZHANG... magnesium rolling without edge cracks is 210 ℃. Key words: magnesium alloy; rolling; finite element analysis; temperature gradient 镁合金是最轻的结构合金之一,已经在交通运输,3C等移动产品中得到了广泛应用.且镁的储量丰富,环境友好性优良,所以镁合金是非常有研究开发和应用前景的一......
......