Evolution of oxide nanoparticles during thermomechanical processing and its influence on mechanical properties of a 12Cr ODS alloy

doi:10.1016/j.jmst.2024.12.049

IMR OpenIR

	Evolution of oxide nanoparticles during thermomechanical processing and its influence on mechanical properties of a 12Cr ODS alloy
	Ma, Haobo 1,2; Li, Jing 1,3; Wang, Yongli 1,3; Wang, Jiawei 1; Liu, Shi 1,3; Xiong, Liangyin 1,3
通讯作者	Li, Jing(jingli@imr.ac.cn) ; Xiong, Liangyin(lyxiong@imr.ac.cn)
	2025-10-01
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	231 页码:62-76
摘要	A Fe-12Cr-2W-0.2Zr-0.1Ti-0.35Y2O3 ODS ferritic alloy was prepared by ball milling, hot isostatic pressing (HIP) and thermomechanical processing herein. The evolution of oxide nanoparticles (ONPs) with different intermediate annealing temperatures of thermomechanical processing and its effect on microstructure and mechanical properties of the ODS alloy were investigated. The result shows that the intermediate annealing temperatures played a decisive role in the size, morphology and structure of nanoparticles in the final alloy since this was attributed to the fact that fine particles were dissolved through dislocation shearing during cold deformation and then re-precipitated during subsequent heat treatment. The high intermediate annealing temperature promotes the growth of the near-spherical ONPs, while the ellipsoidal nanoparticles are developed at relatively low temperature. Meanwhile, the structural change of the ONPs was also facilitated by the dissolution-reprecipitation behavior. The predominant Y2(ZryTi1-y)2O7 with cubic pyrochlore phase in as-HIPed alloy can be transformed into Y4Zr3O12 particles with rhombohedral structure during the thermomechanical treatment. However, compared with the change in size of ONPs, the change in morphology and structure of ONPs has no obvious influence on the mechanical strength. Different intermediate annealing temperatures play a different role in the coarsening of ONPs during thermomechanical treatment, which makes the alloy annealed at low temperature exhibiting more uniform distribution of ONPs and better mechanical properties. (c) 2025 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	ODS ferritic alloys Thermomechanical processing Oxide nanoparticles Structure change Morphological transition Mechanical properties
资助者	Research Fund of Nuclear Materials of China Atomic Energy Authority
DOI	10.1016/j.jmst.2024.12.049
收录类别	SCI
语种	英语
资助项目	Research Fund of Nuclear Materials of China Atomic Energy Authority[ICNM-2023-YZ-03]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001446379900001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/191921
专题	中国科学院金属研究所
通讯作者	Li, Jing; Xiong, Liangyin
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, Hefei 230026, Peoples R China 3.Chinese Acad Sci, CAS Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Ma, Haobo,Li, Jing,Wang, Yongli,et al. Evolution of oxide nanoparticles during thermomechanical processing and its influence on mechanical properties of a 12Cr ODS alloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2025,231:62-76.
APA	Ma, Haobo,Li, Jing,Wang, Yongli,Wang, Jiawei,Liu, Shi,&Xiong, Liangyin.(2025).Evolution of oxide nanoparticles during thermomechanical processing and its influence on mechanical properties of a 12Cr ODS alloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,231,62-76.
MLA	Ma, Haobo,et al."Evolution of oxide nanoparticles during thermomechanical processing and its influence on mechanical properties of a 12Cr ODS alloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 231(2025):62-76.