Influence of Ti content on microstructure, mechanical properties and castability of directionally solidified superalloy DZ125L
Directionally solidified DZ125L alloys of various Ti content were developed by low segregation technology.The microstructure, mechanical properties and castability of directionally solidified superalloy DZ125L were investigated.With decreasing Ti content in DZ125L alloy, the size, volume fraction and separation temperature of γ” decreased.While the tensile strength and rupture life of directional solidified cylindrical samples is also obviously decreased.Lowering Ti content in alloy resulted in free hot cracking casting blades.Compared with IN792 alloy, DZ125L alloy needs much lower Ti/Ta ratio to achieve good castability.
Ti content Microstructure Mechanical property Castability
Feixue Yang Enze Liu Zheng Zhi Jian Tong Likui Ning
Institute of metal research, Chinese academy of sciences, Shenyang 110016, China
国内会议
宁波
英文
1-21
2014-11-11（万方平台首次上网日期，不代表论文的发表时间）