Effect of solution heat treatment on creep properties of a nickel-based single crystal superalloy

doi:10.1016/j.jmrt.2021.10.078

IMR OpenIR

	Effect of solution heat treatment on creep properties of a nickel-based single crystal superalloy
	Yunling, Du 1,2; Yang, Yanhong 1; Diao, Aimin 3; Li, Yongmei 1,2; Wang, Xinguang 1; Zhou, Yizhou 1; Li, Jinguo 1; Sun, Xiaofeng 1
通讯作者	Yang, Yanhong(yhyang@imr.ac.cn) ; Wang, Xinguang(xgwang11b@imr.ac.cn) ; Zhou, Yizhou(yzzhou@imr.ac.cn)
	2021-11-01
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	15 页码:4702-4713
摘要	A novel low-density nickel-based single-crystal superalloy was prepared and the effect of solution treatment on the creep deformation mechanism was systematically investigated. The results reveal that the creep life increases with the increase of solution treatment time, which can be ascribed to microstructural homogenization. However, when the solution treatment time exceeds a threshold limit, the relative proportion of undesirable defects significantly increases, which accelerates the failure and compromises the creep life. The homogenization of the composition leads to the precipitation of a more homogenized gamma' phase and, in turn, results in a more uniform and dense dislocation network, thus hindering the dislocation movement and improving the creep life. The undesirable defects may lead to the stress concentration and weaken the effect of the dislocation network, thus accelerating the creep process and the dislocation are more likely to shear into the gamma' phase. In general, the current study provides guidance for selecting a more reasonable solution treatment time to improve the creep strength. (C) 2021 The Authors. Published by Elsevier B.V.
关键词	Nickel-based single crystal superalloys Microstructural evolution Creep behavior Solution heat-treatment
资助者	National Natural Science Foundation of China ; National Science and Technology Major Project ; National Key R&D Pro-gram of China ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Innovation Academy for Light-duty Gas Turbine, Chinese Academy of Sciences
DOI	10.1016/j.jmrt.2021.10.078
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51701210] ; National Science and Technology Major Project[2017-VI-0003-0073] ; National Science and Technology Major Project[2017-VI-0002-0072] ; National Key R&D Pro-gram of China[2017YFA0700704] ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Innovation Academy for Light-duty Gas Turbine, Chinese Academy of Sciences[CXYJJ20-MS-03]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000717666800005
出版者	ELSEVIER
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/167427
专题	中国科学院金属研究所
通讯作者	Yang, Yanhong; Wang, Xinguang; Zhou, Yizhou
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Naval Univ Engn, Coll Naval Architecture & Ocean Engn, Wuhan 430000, Peoples R China
推荐引用方式 GB/T 7714	Yunling, Du,Yang, Yanhong,Diao, Aimin,et al. Effect of solution heat treatment on creep properties of a nickel-based single crystal superalloy[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2021,15:4702-4713.
APA	Yunling, Du.,Yang, Yanhong.,Diao, Aimin.,Li, Yongmei.,Wang, Xinguang.,...&Sun, Xiaofeng.(2021).Effect of solution heat treatment on creep properties of a nickel-based single crystal superalloy.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,15,4702-4713.
MLA	Yunling, Du,et al."Effect of solution heat treatment on creep properties of a nickel-based single crystal superalloy".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 15(2021):4702-4713.