Precipitation of the gamma prime phase in a Ni-co-based superalloy during different stages of cooling

doi:10.1016/j.matchar.2024.114235

IMR OpenIR

	Precipitation of the gamma prime phase in a Ni-co-based superalloy during different stages of cooling
	Xu, Ling 1; Zhou, Jinhua 1; Cui, Chuanyong 2; Sun, Changqing 1; Xie, Shuqian 1
通讯作者	Xu, Ling(xulivg@gmail.com) ; Cui, Chuanyong(chycui@imr.ac.cn)
	2024-10-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	216 页码:12
摘要	The cooling precipitation of the gamma primary (gamma') phase in a precipitation strengthened Ni-Co-base disk superalloy was investigated by various experimental and analytical methods. The alloy was super-solvus heat treated and then slow cooled to different interrupted temperatures (IT) followed by instant water quenching. It shows that with the IT change, the gamma' phase precipitated in different characteristics, such as morphologies, sizes and distributions. Through using three-dimensional atomic probe (3DAP) technique to study the gamma and gamma' compositions and their interface composition profiles, three types of gamma' precipitates, entitled as quenching gamma', primary cooling gamma' and secondary cooling gamma', were identified and their respective precipitation conditions and mechanisms were also discussed. According to the composition gradient across the gamma/gamma' interfaces and the gamma' composition features, the separation mode of these gamma' was determined to via the classical nucleation and growth mechanism. In addition, the effects of the gamma' forming elements on the nucleation and growth processes of the different generations of gamma' were evaluated. It indicates that the diffusion of Ti dominated the primary nucleation while that of Al reigned the following growth and the secondary nucleation.
关键词	Three-dimensional atom probe (3DAP) Ni-co based superalloy gamma' precipitation Nucleation mechanism Composition
资助者	Hundreds of Talents Project, National Basic Research Program (973 Program) of China ; National Natural Science Foundation of China (NSFC) ; Joint funds of the Natural Science Foundation of Liaoning Province ; Applied Basic Research Program of Liaoning Province
DOI	10.1016/j.matchar.2024.114235
收录类别	SCI
语种	英语
资助项目	Hundreds of Talents Project, National Basic Research Program (973 Program) of China[2010CB631206] ; National Natural Science Foundation of China (NSFC)[51171179] ; National Natural Science Foundation of China (NSFC)[51128101] ; National Natural Science Foundation of China (NSFC)[51271174] ; Joint funds of the Natural Science Foundation of Liaoning Province[2023-BSBA-231] ; Applied Basic Research Program of Liaoning Province[2022JH2/101300201]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:001295809800001
出版者	ELSEVIER SCIENCE INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/189215
专题	中国科学院金属研究所
通讯作者	Xu, Ling; Cui, Chuanyong
作者单位	1.Shenyang Inst Engn, Sch Mech Engn, Key Lab Reliabil & Hlth Management Energy & Power, Shenyang 110136, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Xu, Ling,Zhou, Jinhua,Cui, Chuanyong,et al. Precipitation of the gamma prime phase in a Ni-co-based superalloy during different stages of cooling[J]. MATERIALS CHARACTERIZATION,2024,216:12.
APA	Xu, Ling,Zhou, Jinhua,Cui, Chuanyong,Sun, Changqing,&Xie, Shuqian.(2024).Precipitation of the gamma prime phase in a Ni-co-based superalloy during different stages of cooling.MATERIALS CHARACTERIZATION,216,12.
MLA	Xu, Ling,et al."Precipitation of the gamma prime phase in a Ni-co-based superalloy during different stages of cooling".MATERIALS CHARACTERIZATION 216(2024):12.