Influence of Dynamic Precipitation of γ′ Phase on Dynamic Strain Aging in a Fe-Ni-Based Superalloy

doi:10.1007/s12540-024-01728-3

IMR OpenIR

	Influence of Dynamic Precipitation of γ′ Phase on Dynamic Strain Aging in a Fe-Ni-Based Superalloy
	Huang, Yeshun 1,2; Zhang, Rui 1; Zhou, Zijian 1; Zhang, Peng 3; Yan, Jingbo 3; Yuan, Yong 3; Gu, Yuefeng 4; Cui, Chuanyong 1; Zhou, Yizhou 1; Sun, Xiaofeng 1
通讯作者	Cui, Chuanyong(chycui@imr.ac.cn)
	2024-07-05
发表期刊	METALS AND MATERIALS INTERNATIONAL
ISSN	1598-9623
页码	11
摘要	Discontinuous plastic flow due to dynamic strain aging (DSA) in a Fe-Ni-based superalloy was investigated by tensile tests in the temperature range from 500 degrees C to 800 degrees C with different gamma ' fraction. Type A serrations were observed in the solutionized and as-aged specimens at 500 degrees C, which was a result of diffusion of carbon atoms. The stress amplitude was affected by the dislocation density induced by the presence of gamma ' phase. Type C serrations occurred in the solutionized and under-aged samples at 650 degrees C and 700 degrees C. With the increase of gamma ' phase fraction in the initial microstructure, the stress amplitude and duration of type C serrations decreased at 700 degrees C. It was demonstrated that the dominant deformation mechanisms of under-aged specimens at 650 degrees C and 700 degrees C were weakly-coupled dislocation pairs shearing the fine gamma ' particles with slip bands, while the deformation mechanism transformed to dislocation climbing at 800 degrees C. The model linking serration amplitude, solute concentration at the dislocation line and dislocation density was used to analyze the effect of gamma ' dynamic precipitation on the DSA. The dynamic precipitation of gamma ' phase during tensile significantly alters the DSA behavior by removing substitutional solutes responsible for gamma ' precipitation from the matrix.
关键词	Dynamic strain aging Dynamic precipitation Gamma ' phase Superalloy Serrated flow
资助者	National Key R&D Program of China ; Research and Development Funds of Xi'an Thermal Power Research Institute Co., Ltd. ; Innovation Program of Institute of Metal Research ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; Natural Science Basic Research Plan in Shaanxi Province of China
DOI	10.1007/s12540-024-01728-3
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2019YFA0705300] ; National Key R&D Program of China[2021YFB3700600] ; Research and Development Funds of Xi'an Thermal Power Research Institute Co., Ltd.[TA-20-TYK03] ; Innovation Program of Institute of Metal Research ; Chinese Academy of Sciences[2021-PY09] ; National Natural Science Foundation of China[92060102] ; Natural Science Basic Research Plan in Shaanxi Province of China[2022JQ-314]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001262873000001
出版者	KOREAN INST METALS MATERIALS
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/188044
专题	中国科学院金属研究所
通讯作者	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 3.Xian Thermal Power Res Inst Co Ltd, Xian 710032, Peoples R China 4.Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China
推荐引用方式 GB/T 7714	Huang, Yeshun,Zhang, Rui,Zhou, Zijian,等. Influence of Dynamic Precipitation of γ′ Phase on Dynamic Strain Aging in a Fe-Ni-Based Superalloy[J]. METALS AND MATERIALS INTERNATIONAL,2024:11.
APA	Huang, Yeshun.,Zhang, Rui.,Zhou, Zijian.,Zhang, Peng.,Yan, Jingbo.,...&Sun, Xiaofeng.(2024).Influence of Dynamic Precipitation of γ′ Phase on Dynamic Strain Aging in a Fe-Ni-Based Superalloy.METALS AND MATERIALS INTERNATIONAL,11.
MLA	Huang, Yeshun,et al."Influence of Dynamic Precipitation of γ′ Phase on Dynamic Strain Aging in a Fe-Ni-Based Superalloy".METALS AND MATERIALS INTERNATIONAL (2024):11.