Precipitate characteristic of modified CLF-1 steel during thermal aging at 650 °C

doi:10.1016/j.mtcomm.2024.110134

IMR OpenIR

	Precipitate characteristic of modified CLF-1 steel during thermal aging at 650 °C
	Yang, Dongtian 1,2; Xing, Chenzhi 1; Yang, Guoping 3; Liao, Hongbin 3; Wang, Xiaoyu 3; Cao, Shuo 2; Xiong, Liangyin 2,4; Liu, Shi 2,4
通讯作者	Xiong, Liangyin(lyxiong@imr.ac.cn) ; Liu, Shi(sliu@imr.ac.cn)
	2024-08-01
发表期刊	MATERIALS TODAY COMMUNICATIONS
卷号	40 页码:6
摘要	The study investigates the impact of thermal aging at 650 degrees C on the microstructure and precipitated phase of China Low-activation Ferrite (CLF-1) steel, which has undergone titanium strengthening and thermo-mechanical treatment (TMT). High-resolution experiments were conducted to explore changes in the size, degree of coherence, and interfacial free energy of the MC phase after a 2000-hour aging duration. Additionally, Density Functional Theory (DFT) calculations were employed to examine the stability differences between (Ta/V)C and TiC phases under various crystal planes. The experimental results indicated that the TiC phase exhibited three distinct manifestations: coherent but with a large size, non-coherent but with a small size, and non-coherent with a large size. Notably, higher interface free energy corresponded to lower particle stability. Through an investigation of the change in binding energy and surface energy across various crystal planes, it was discovered that certain TiC phases undergo growth and coarsening specifically under the (220) crystal planes due to variations in energy density after long-term aging. This study provides novel insights into the stability of precipitate phases, offering valuable implications for materials design.
关键词	Nuclear materials Thermal aging Crystal structure Interfacial free energy Density Functional Theory
资助者	State Key Laboratory of Nuclear Physics and Technology, Peking University
DOI	10.1016/j.mtcomm.2024.110134
收录类别	SCI
语种	英语
资助项目	State Key Laboratory of Nuclear Physics and Technology, Peking University[NPT2021KF-ZX]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:001296970900001
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/321006/189165
专题	中国科学院金属研究所
通讯作者	Xiong, Liangyin; Liu, Shi
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 3.Southwestern Inst Phys, Ctr Fus Sci, Chengdu 610041, Peoples R China 4.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	Yang, Dongtian,Xing, Chenzhi,Yang, Guoping,et al. Precipitate characteristic of modified CLF-1 steel during thermal aging at 650 °C[J]. MATERIALS TODAY COMMUNICATIONS,2024,40:6.
APA	Yang, Dongtian.,Xing, Chenzhi.,Yang, Guoping.,Liao, Hongbin.,Wang, Xiaoyu.,...&Liu, Shi.(2024).Precipitate characteristic of modified CLF-1 steel during thermal aging at 650 °C.MATERIALS TODAY COMMUNICATIONS,40,6.
MLA	Yang, Dongtian,et al."Precipitate characteristic of modified CLF-1 steel during thermal aging at 650 °C".MATERIALS TODAY COMMUNICATIONS 40(2024):6.