Effect of Ta Addition on the Microstructure and Tensile Properties of a Ni-Co Base Superalloy

doi:10.1007/s11661-020-06081-9

IMR OpenIR

	Effect of Ta Addition on the Microstructure and Tensile Properties of a Ni-Co Base Superalloy
	Zhu, C. Z.1,2; Zhang, R.1; Cui, C. Y.1; Zhou, Y. Z.1; Yuan, Y.3; Yu, Z. S.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)
	2020-11-09
发表期刊	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN	1073-5623
卷号	52 期号:1 页码:11
摘要	Herein, the effect of Ta addition (0 and 2 wt pct) on the tensile properties of a Ni-Co base superalloy was investigated in the temperature range of 23-900 degrees C. The results revealed that the addition of Ta improved the strength of the superalloy at all experimental temperatures and increased the plasticity at 760 degrees C. In addition, the microstructural observations indicate that Ta addition promoted the precipitation of gamma ' precipitates, as well as the precipitation of (Ta, Ti)-rich MC carbides. The addition of 2 wt pct Ta promoted twinning and, thus, transformed the fracture mechanism of the alloy from an intergranular brittle fracture to a mixed ductile and brittle fracture at 760 degrees C. Furthermore, the tensile properties and the related microstructures, deformation mechanisms, and fracture mechanisms of the experimental alloys are discussed. Finally, we demonstrated that the combined effect of the increase in the grain boundary strength, the reduction in the critical resolved shear stress, and the promotion of twinning induced the synchronous improvement of strength and plasticity of the alloy at 760 degrees C.
资助者	National Natural Science Foundation of China ; Ministry of Science and Technology of China
DOI	10.1007/s11661-020-06081-9
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51671189] ; Ministry of Science and Technology of China[2017YFA0700703] ; Ministry of Science and Technology of China[2019YFA0705304]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000588003200001
出版者	SPRINGER
引用统计	被引频次：30[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/321006/141253
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 Metal Res, 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. Effect of Ta Addition on the Microstructure and Tensile Properties of a Ni-Co Base Superalloy[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2020,52(1):11.
APA	Zhu, C. Z..,Zhang, R..,Cui, C. Y..,Zhou, Y. Z..,Yuan, Y..,...&Sun, X. F..(2020).Effect of Ta Addition on the Microstructure and Tensile Properties of a Ni-Co Base Superalloy.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,52(1),11.
MLA	Zhu, C. Z.,et al."Effect of Ta Addition on the Microstructure and Tensile Properties of a Ni-Co Base Superalloy".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 52.1(2020):11.