Enhancing mechanical properties of high Cr dual-phase FeCrNi medium-entropy alloy through mutual phase transformation and grain refinement

doi:10.1016/j.msea.2024.146745

IMR OpenIR

	Enhancing mechanical properties of high Cr dual-phase FeCrNi medium-entropy alloy through mutual phase transformation and grain refinement
	Hu, Zhaohui 1; Lin, Yating 1; Zhang, Lu 1; Wang, Anguo 1; Wang, Junyang 1; Zhang, Rui 2; Cai, Minghui 3; Yu, Jianxin 4; Wu, Baolin 1
通讯作者	Zhang, Lu(zhanglu5853@163.com)
	2024-08-01
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	907 页码:12
摘要	A high Cr Fe40Cr40Ni20 40 Cr 40 Ni 20 (at.%) medium-entropy alloy was prepared through vacuum arc melting. The alloy exhibited a dual-phase structure comprising face-centered-cubic (FCC) and body-centered-cubic (BCC) phases in a solid solution state. After annealing and cold rolling, two different heterogeneous structures emerged from the original FCC and BCC phases through mutual phase transformation. Moreover, the alloy exhibited a yield strength, ultimate tensile strength, and total elongation of 1.18 GPa, 1.25 GPa, and 13 %, respectively. The high strength of the alloy was mainly attributed to boundary strengthening and heterogeneous deformation-induced (HDI) strengthening within the two heterogeneous structures. Notably, the effectiveness of HDI strengthening was enhanced owing to the complete encapsulation and constraint of soft zones by hard zones in the heterogeneous structure originating from the BCC phase. Additionally, the deformation ability of the alloy mainly depended on dislocation slips and deformation twinning in recrystallized FCC grains and FCC strip phases, thereby ensuring satisfactory ductility.
关键词	Medium entropy alloys Dual-phase Heterogeneous structure Mechanical property
资助者	Basic scientific project of Liaoning Provincial Department of Education ; Open fund of a key laboratory of fundamental science for national defense of aeronautical digital manufacturing process at Shenyang Aero-space University ; National College Student Innovation and Entrepreneurship Training Program Project in Shenyang Aerospace University
DOI	10.1016/j.msea.2024.146745
收录类别	SCI
语种	英语
资助项目	Basic scientific project of Liaoning Provincial Department of Education[JYTMS20230264] ; Open fund of a key laboratory of fundamental science for national defense of aeronautical digital manufacturing process at Shenyang Aero-space University[SHSYS202205] ; National College Student Innovation and Entrepreneurship Training Program Project in Shenyang Aerospace University[D202311060951548487]
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:001292405900001
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/321006/189069
专题	中国科学院金属研究所
通讯作者	Zhang, Lu
作者单位	1.Shenyang Aerosp Univ, Sch Mat & Sci Engn, Shenyang 110136, Liaoning, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 3.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China 4.Harbin Inst Technol, Ctr Anal & Measurement, Harbin 150001, Heilongjiang, Peoples R China
推荐引用方式 GB/T 7714	Hu, Zhaohui,Lin, Yating,Zhang, Lu,et al. Enhancing mechanical properties of high Cr dual-phase FeCrNi medium-entropy alloy through mutual phase transformation and grain refinement[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2024,907:12.
APA	Hu, Zhaohui.,Lin, Yating.,Zhang, Lu.,Wang, Anguo.,Wang, Junyang.,...&Wu, Baolin.(2024).Enhancing mechanical properties of high Cr dual-phase FeCrNi medium-entropy alloy through mutual phase transformation and grain refinement.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,907,12.
MLA	Hu, Zhaohui,et al."Enhancing mechanical properties of high Cr dual-phase FeCrNi medium-entropy alloy through mutual phase transformation and grain refinement".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 907(2024):12.