Microstructures and mechanical properties of cold rolled Mg-8Li and Mg-8Li-2Al-2RE alloys

来源期刊:中国有色金属学报(英文版)2010年增刊第2期

论文作者:闫宏 陈荣石 韩恩厚

文章页码:550 - 554

Key words:magnesium alloys; lithium; microstructure; texture; Mg-Li alloy

Abstract: The microstructures and mechanical properties of Mg-8Li and Mg-8Li-2Al-2RE alloy sheets were evaluated after cold rolling. Both alloys contain α-phase and β-phase which consists of a solid solution of Mg in BCC Li. The proportion of β-phase in both alloys is approximately 60%. The α-phase and β-phase are elongated approximately parallel to the rolling direction and there is no sign of recrystallization even after being annealed at 200 ℃ for 1 h. The yield strength of Mg-8Li-2Al-2RE sheets is about 165 MPa with elongation of 35% along rolling direction, while the yield strength is about 187 MPa with elongation of 21% along the direction titled 45? to rolling direction. The α-phase in both alloys exhibits basal texture, and the intensity of basal texture in Mg-8Li is larger than that in Mg-8Li-2Al-2RE. However, the β-phase shows (100) texture, and the intensity of (100) texture in Mg-8Li is twice of that in Mg-8Li-2Al-2RE. It could be attributed to the existence of RE-containing particles in Mg-8Li-2Al-2RE.

基金信息:the National Basic Research Program of China

有色金属在线官网  |   会议  |   在线投稿  |   购买纸书  |   科技图书馆

中南大学出版社 技术支持 版权声明   电话:0731-88830515 88830516   传真:0731-88710482   Email:administrator@cnnmol.com

互联网出版许可证:(署)网出证(京)字第342号   京ICP备17050991号-6      京公网安备11010802042557号