Effect of Solution Treatment on Microstructure and Stress-Rupture Property of a Ni<sub>3</sub>Al-Based Single-Crystal Superalloy

doi:10.1007/s11665-024-10385-x

IMR OpenIR

	Effect of Solution Treatment on Microstructure and Stress-Rupture Property of a Ni₃Al-Based Single-Crystal Superalloy
	Luo, Xu 1; Cai, Hang 2,3; Hu, Haoran 1; Hou, Jieshan 2; Guo, Yong-an 2; Zhou, Lanzhang 2
通讯作者	Hou, Jieshan(jshou@imr.ac.cn) ; Zhou, Lanzhang(lzz@imr.ac.cn)
	2025-02-17
发表期刊	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
ISSN	1059-9495
页码	12
摘要	The effect of solution treatment on the microstructure and stress-rupture property of a Ni3Al-based single-crystal superalloy was investigated. The solution treatment temperature is lower or higher than the dissolution temperature of gamma/gamma ' eutectic phase (T-eut) which has a significant effect on the microstructure. When it is slightly below the T-eut, the gamma/gamma ' eutectic coarsened and aggregated to form a large petal-like shape. This process caused non-gamma '-phase forming elements to diffuse to the ID region, and the gamma/gamma ' eutectic phase acted as an obstacle hindering the diffusion of these elements, exacerbating the segregation degree of these elements. On the contrary, the gamma/gamma ' eutectic phases were eliminated, and the segregation degree of alloying elements reduced when the temperature was higher than Teut. Besides, the deformation inhomogeneity due to the differences in gamma ' particle size in ID and dendritic core area for the former regime, gamma/gamma ' eutectic phase as a weak position decreased the stress-rupture life at 1100 degrees C/137 MPa. However, the stress-rupture life is nearly twice times that of former when the sample is treated with the later regime, and it is greater than VKNA-25 alloy. This study guides the design of solution heat treatment for Ni3Al-based single-crystal superalloys.
关键词	Ni3Al-based superalloy microstructure heat treatment segregation of alloying elements stress rupture
资助者	National Science and Technology Major Project ; National Natural Science Foundation of China (NSFC)
DOI	10.1007/s11665-024-10385-x
收录类别	SCI
语种	英语
资助项目	National Science and Technology Major Project[Y2019-VII-001 1-0151] ; National Natural Science Foundation of China (NSFC)[51571191]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:001424025800001
出版者	SPRINGER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/179908
专题	中国科学院金属研究所
通讯作者	Hou, Jieshan; Zhou, Lanzhang
作者单位	1.Pangang Grp Res Inst Co Ltd, Beihai, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Beijing, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Luo, Xu,Cai, Hang,Hu, Haoran,et al. Effect of Solution Treatment on Microstructure and Stress-Rupture Property of a Ni₃Al-Based Single-Crystal Superalloy[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2025:12.
APA	Luo, Xu,Cai, Hang,Hu, Haoran,Hou, Jieshan,Guo, Yong-an,&Zhou, Lanzhang.(2025).Effect of Solution Treatment on Microstructure and Stress-Rupture Property of a Ni₃Al-Based Single-Crystal Superalloy.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,12.
MLA	Luo, Xu,et al."Effect of Solution Treatment on Microstructure and Stress-Rupture Property of a Ni₃Al-Based Single-Crystal Superalloy".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE (2025):12.