Mechanical properties and deformation behavior of Ti-5Al-2.5ZrELI alloy used at cryogenic temperature

来源期刊：中国有色金属学报(英文版)2001年第3期

论文作者：刘雅秀 千东范 高宝东 王江波 王晓华 冯昭伟

文章页码：395 - 398

Key words：Ti-5Al-2.5ZrELI； cryogenic temperature； microstructure； deformation behavior

Abstract: The mechanical properties and deformation behavior of Ti-5Al-2.5 ZrELI alloy compared with Ti-5Al-2.5 SnELI at 4.2?K, 20 K and 293 K were investigated. The results show that the new titanium alloy Ti-5Al-2.5ZrELI has more consistent properties because of its uniform microstructure and less segregation. It has good elongation and ductility. The fracture surfaces are covered with elongated dimples at cryogenic temperatures. The deformation mode at 293 K, 20 K and 4.2 K are twinning and slipping.