Tensile Properties and Deformation Mechanisms of Ni-Co-W Based Superalloy with High γ′ Content

doi:10.1007/s12540-024-01647-3

IMR OpenIR

	Tensile Properties and Deformation Mechanisms of Ni-Co-W Based Superalloy with High γ′ Content
	Tai, Wenbin 1,2; Zhang, Rui 1; Zhou, Zijian 1; Cui, Chuanyong 1; Zhou, Yizhou 1; Sun, Xiaofeng 1
通讯作者	Zhang, Rui(rzhang@imr.ac.cn) ; Cui, Chuanyong(chycui@imr.ac.cn)
	2024-03-09
发表期刊	METALS AND MATERIALS INTERNATIONAL
ISSN	1598-9623
页码	9
摘要	The tensile properties and deformation mechanism of a new Ni-Co-W based wrought superalloy at 400-1000 degrees C were investigated. The results showed that the yield strength below 800 degrees C is essentially unchanged but swiftly decreases above 800 degrees C. The ultimate tensile strength of the alloy remains constant below 500 degrees C, decreases moderately between 500 and 850 degrees C, and decreases rapidly above 850 degrees C. The deformation mechanism of the alloy is dominated by dislocation pairs cutting below 700 degrees C, while a large number of stacking faults (SFs) and some microtwins participate in the deformed alloy at 800 degrees C. The dislocation bypass mechanism starts at 850 degrees C and dominates dislocation movement with increasing temperature. Strong coupling dislocation pairs, SFs, and microtwins are responsible for the low and intermediate temperature strength of the alloy. When the bypass mechanism dominates the dislocation motion, the strength of the alloy decreases swiftly at higher temperatures. The revelation of deformation mechanisms is beneficial to the property regulation and safety application of the new superalloy.
关键词	Ni-Co-W based superalloy Tensile properties Deformation mechanism SFs Microtwins
资助者	National Key R&D Program of China ; National Science and Technology Major Project of China ; Natural Science Foundation Project of Liaoning Province ; Youth Innovation Promotion Association, CAS
DOI	10.1007/s12540-024-01647-3
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China ; National Science and Technology Major Project of China ; Natural Science Foundation Project of Liaoning Province[2023-MS-024] ; Youth Innovation Promotion Association, CAS[2023202] ; [2019YFA0705300]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001178616600006
出版者	KOREAN INST METALS MATERIALS
引用统计	被引频次：6[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/321006/184982
专题	中国科学院金属研究所
通讯作者	Zhang, Rui; Cui, Chuanyong
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, 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	Tai, Wenbin,Zhang, Rui,Zhou, Zijian,等. Tensile Properties and Deformation Mechanisms of Ni-Co-W Based Superalloy with High γ′ Content[J]. METALS AND MATERIALS INTERNATIONAL,2024:9.
APA	Tai, Wenbin,Zhang, Rui,Zhou, Zijian,Cui, Chuanyong,Zhou, Yizhou,&Sun, Xiaofeng.(2024).Tensile Properties and Deformation Mechanisms of Ni-Co-W Based Superalloy with High γ′ Content.METALS AND MATERIALS INTERNATIONAL,9.
MLA	Tai, Wenbin,et al."Tensile Properties and Deformation Mechanisms of Ni-Co-W Based Superalloy with High γ′ Content".METALS AND MATERIALS INTERNATIONAL (2024):9.