Influence of Ta content on microstructure and creep behavior of a Ni-Co base disc superalloy

doi:10.1016/j.msea.2020.140646

IMR OpenIR

	Influence of Ta content on microstructure and creep behavior of a Ni-Co base disc superalloy
	Zhu, C. Z.1,2; Zhang, R.1; Cui, C. Y.1; Zhou, Y. Z.1; Liang, F. G.3; Liu, X.3; Sun, X. F.1
通讯作者	Zhang, R.(rzhang@imr.ac.cn) ; Cui, C. Y.(chycui@imr.ac.cn)
	2021-01-20
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	802 页码:10
摘要	This study investigated the influence of Ta content (i.e. 0 wt%, 2 wt%, and 4 wt%) on microstructure and creep behavior of a Ni-Co base disc superalloy at 760 degrees C/480 MPa. It was found that creep rupture life and the minimum creep strain rate showed a trend of first increase and then decrease with the increase of Ta content. The microstructure observations indicated that Ta addition promoted the increase of volume fraction of gamma', the precipitation of MC carbide and eta-phase, but inhibited the growth of gamma' and the precipitation of M23C6 carbide at grain boundaries during creep. The mechanisms related to creep behavior were discussed, and it was deemed that the higher gamma' volume fraction, finer size of gamma', larger gamma/gamma' misfit, lower atomic diffusion rate, inhibited M23C6 carbide and the palisade-like distribution of eta-phase may be responsible for the enhancement of the primary and tertiary creep resistance.
关键词	Ni-Co base superalloy Tantalum Microstructure Creep behavior
资助者	National Key R&D Program of China ; National Natural Science Foundation of China ; Doctoral Start-up Foundation of Liaoning Province
DOI	10.1016/j.msea.2020.140646
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2017YFA0700703] ; National Key R&D Program of China[2019YFA0705304] ; National Natural Science Foundation of China[51671189] ; Doctoral Start-up Foundation of Liaoning Province
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000612553100001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：23[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/321006/160577
专题	中国科学院金属研究所
通讯作者	Zhang, R.; Cui, C. Y.
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, 96 Jinzhai Rd, Hefei 230026, Peoples R China 3.Xian Thermal Power Res Inst Co Ltd, 136 Xingqing Rd, Xian 710032, Peoples R China
推荐引用方式 GB/T 7714	Zhu, C. Z.,Zhang, R.,Cui, C. Y.,et al. Influence of Ta content on microstructure and creep behavior of a Ni-Co base disc superalloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2021,802:10.
APA	Zhu, C. Z..,Zhang, R..,Cui, C. Y..,Zhou, Y. Z..,Liang, F. G..,...&Sun, X. F..(2021).Influence of Ta content on microstructure and creep behavior of a Ni-Co base disc superalloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,802,10.
MLA	Zhu, C. Z.,et al."Influence of Ta content on microstructure and creep behavior of a Ni-Co base disc superalloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 802(2021):10.