A novel under-aging design to improve the creep rupture life of a precipitation-strengthened Fe-Ni-based superalloy

doi:10.1016/j.msea.2024.146459

IMR OpenIR

	A novel under-aging design to improve the creep rupture life of a precipitation-strengthened 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)
	2024-05-01
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	899 页码:12
摘要	The under-aging, peak-aging, and over-aging microstructures of a precipitation-strengthened Fe-Ni-based alloy were designed by applying different heat treatment procedures. Tensile creep tests were conducted at 700 degrees C and 250 MPa on samples exhibiting different strengthening gamma ' precipitate volume fractions and diameters. The creep life of the alloy in the under-aged state was increased by more than 10% compared to the peak-aged condition, which provided a new approach to designing the heat treatment regime that improve the creep rupture life and plasticity of precipitation-strengthened alloys. The improvement in creep properties of the under-aged state was attributed to the transition from shearing to Orowan looping of gamma ' particles by matrix dislocations during the dynamic precipitation and coarsening of gamma ' phase, increasing intragranular deformation resistance. The underaged microstructure design allowed reducing the grain boundary sliding contribution to overall strain during creep. As a result, the steady-state creep stage of the alloy in the under-aged state was extended. Additionally, relationships between applied stress and nucleation, growth, and coarsening of the gamma ' phase have been evidenced.
关键词	Precipitation-strengthened alloys Under-aging gamma ' precipitate Creep behavior Deformation mechanism
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	10.1016/j.msea.2024.146459
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	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001227967000001
出版者	ELSEVIER SCIENCE SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/186479
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, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 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,et al. A novel under-aging design to improve the creep rupture life of a precipitation-strengthened Fe-Ni-based superalloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2024,899:12.
APA	Huang, Yeshun.,Zhang, Rui.,Zhou, Zijian.,Zhang, Peng.,Yan, Jingbo.,...&Sun, Xiaofeng.(2024).A novel under-aging design to improve the creep rupture life of a precipitation-strengthened Fe-Ni-based superalloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,899,12.
MLA	Huang, Yeshun,et al."A novel under-aging design to improve the creep rupture life of a precipitation-strengthened Fe-Ni-based superalloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 899(2024):12.