Influence of Ta on the intermediate temperature creep behavior of a single crystal superalloy

doi:10.1016/j.msea.2021.142160

CORC > 金属研究所 > 中国科学院金属研究所

	Influence of Ta on the intermediate temperature creep behavior of a single crystal superalloy
	Ge, Zhicheng 1,2; Xie, Guang 1; Lu, Yuzhang 1; Wang, Dong 1; Wang, Li 1; Zheng, Wei 1; He, Yufeng 1,2; Lou, Langhong 1; Zhang, Jian 1
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2022-01-13
卷号	831 页码:9
关键词	Ta Single crystal superalloy Creep Stacking fault lock Lattice misfit
ISSN号	0921-5093
DOI	10.1016/j.msea.2021.142160
通讯作者	Xie, Guang(gxie@imr.ac.cn) ; Zhang, Jian(jianzhang@imr.ac.cn)
英文摘要	The influence of Ta on the intermediate temperature creep behavior and deformation mechanism in a Ni-based single crystal superalloy has been investigated at 760 degrees C and 750 MPa. The results indicate that there is a sig-nificant increasing of creep rupture life after the addition of Ta. Lattice misfit between gamma and gamma ' phase at 760 degrees C increases in the Ta-containing alloy. Microstructure showed that the formation of stacking faults in the gamma matrix and denser dislocation network at the gamma/gamma ' interfaces caused by Ta addition are found during the primary creep stage. And a large amount of stacking fault locks which act as an important pattern in the strengthening generate in the gamma ' precipitates, resulting in a lower steady state creep rate and longer steady state creep life in Ta-containing alloy. And possible formation mechanism of the stacking fault locks is also discussed.
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000710160600001
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/166664]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xie, Guang; Zhang, Jian
作者单位	1.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Ge, Zhicheng,Xie, Guang,Lu, Yuzhang,et al. Influence of Ta on the intermediate temperature creep behavior of a single crystal superalloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,831:9.
APA	Ge, Zhicheng.,Xie, Guang.,Lu, Yuzhang.,Wang, Dong.,Wang, Li.,...&Zhang, Jian.(2022).Influence of Ta on the intermediate temperature creep behavior of a single crystal superalloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,831,9.
MLA	Ge, Zhicheng,et al."Influence of Ta on the intermediate temperature creep behavior of a single crystal superalloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 831(2022):9.