镁合金塑性变形过程中孪生行为的研究
李小飞
点击：2750次 下载：0次
作者单位：重庆大学
中文关键字：镁合金；孪生；塑性变形
英文关键字：Magnesium; twinning; plastic deformation
中文摘要：结合国内外对镁合金塑性变形过程中的孪生行为的研究进展，阐述了孪生的晶体学以及几何位向学；分析了孪晶与孪晶之间以及孪晶与滑移之间的相互作用；重点探讨了影响孪生的几方面因素，包括应变路径、形变温度、应变速率、晶粒尺寸以及晶粒取向。
英文摘要：Combining the domestic and overseas developments of plastic deformation research in magnesium alloy, the crystallology and geometry of twinning are overviewed. Then, the interaction between twins and that between slip dislocations and twins are analyzed. The effects of several factors on twinning, including strain path, temperature, strain rate, grain size and crystal orientation, are emphasised.