Creep Properties of a Nickel-Based Single Crystal Superalloy with Low Density

被引:11
作者
Du, Yuling [1 ,2 ]
Tan, Zihao [1 ]
Yang, Yanhong [1 ]
Wang, Xinguang [1 ]
Zhou, Yizhou [1 ]
Li, Jingguo [1 ]
Sun, Xiaofeng [1 ]
机构
[1] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
[2] Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
基金
中国国家自然科学基金; 国家重点研发计划;
关键词
Nickel-based single crystal superalloy; Creep behavior; Microstructural evolution; Topological inversion; DISLOCATION-MOTION; PHASE-STABILITY; LATTICE MISFIT; DD3; SUPERALLOY; RU; MICROSTRUCTURE; DIFFUSION; RUTHENIUM; ADDITIONS;
D O I
10.1007/s12540-020-00903-6
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A novel nickel-based single crystal superalloy with low density had been designed and the creep deformation mechanisms of the experiment alloy under two conditions (1050 degrees C/200 MPa and 1100 degrees C/137 MPa) had been systematically discussed. The topological inversion had been observed after fracture under the above two conditions. The effects of temperature and stress on creep life of the experiment alloy had been found no significant difference under the two conditions. It was indicated that the small decrease in temperature exerted limited influence on the creep behaviors of single crystal superalloys in the range of high temperature.
引用
收藏
页码:5173 / 5178
页数:6
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