Effect of aging heat treatment on microstructure of Ni-based single crystal superalloys

被引：2
|
作者：
Feng, Zhengxing [1 ,2 ]
Wen, Zhixun [1 ]
Li, Meng [1 ]
Zhao, Yanchao [1 ]
Yue, Zhufeng [1 ]
机构：
[1] Northwestern Polytech Univ, Dept Engn Mech, Xian 710072, Peoples R China
[2] Civil Avit Univ China, Coll Aeronaut Engn, Tianjin 300300, Peoples R China
来源：
AIP ADVANCES | 2021年 / 11卷 / 12期
基金：
中国国家自然科学基金;
关键词：
PRECIPITATION;
D O I：
10.1063/5.0077845
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The precipitation and evolution of ? & PRIME; precipitates for various aging heat treatment regimes are studied experimentally in Ni-based single crystal superalloys for both standard heat treatment and long-term aging samples. The focus of this paper is to explore the influence of aging heat treatment on the evolution of the morphology and the distribution of ? & PRIME; precipitates. It is demonstrated that the splitting and shrinkage phenomena appear at low aging heat treatment temperatures, and the passivation phenomenon occurs at a high aging temperature of 1200 & DEG;C. The uniform cubic ? & PRIME; particles can be obtained at 1100 & DEG;C/4 h for the standard heat treatment samples and 1150 & DEG;C/8 h for the long-term aging ones. This research is beneficial for the study of the rejuvenation aging heat treatment in re-service nickel-based superalloys.& nbsp;(C) 2021 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
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页数：13
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