Strength-ductility synergy and superior strain-hardening ability of Ni 38 Co 25 Fe 13 Cr 10 Al 7 Ti 7 multi principal element alloy through heterogeneous L1 2 structure modulation

doi:10.1016/j.jallcom.2024.173916

IMR OpenIR

	Strength-ductility synergy and superior strain-hardening ability of Ni 38 Co 25 Fe 13 Cr 10 Al 7 Ti 7 multi principal element alloy through heterogeneous L1 2 structure modulation
	Yang, Yitong 1,2; Pang, Jingyu 1; Zhang, Zhuqun 1,2; Wang, Yuting 1; Ji, Yu 1; Zhu, Zhengwang 3; Zhang, Long 1; Wang, Aimin 1; Zhang, Haifeng 3; Zhang, Hongwei 1
通讯作者	Pang, Jingyu(jypang17s@imr.ac.cn) ; Zhang, Hongwei(hongweizhang@imr.ac.cn)
	2024-05-15
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	984 页码:10
摘要	In this paper, heterogeneous L1 2 particles were successfully introduced into Ni 38 Co 25 Fe 13 Cr 10 Al 7 Ti 7 MPEA by two -stage aging treatment. Compared with the homogeneous particles, the heterogeneous L1 2 particles strengthened alloy exhibits enhanced strength -plasticity synergy. The tensile elongation is 23.2%, which is higher than all samples with the homogeneous particles, and the yield strength remains at 942 MPa, which is equivalent to the micro particles (972 MPa) with the highest yield strength in the homogeneous particles. Further analysis of the strengthening and deformation mechanisms revealed that precipitation hardening, and heterogeneous deformation -induced hardening were the main factors for the enhanced strength. The deformationinduced layered fracture networks, high -density Lomo-Cottrell locks, and heterogeneous L1 2 particles microstructure characteristics significantly improve the strain hardening ability; GNDs accumulate at the heterogeneous interface to alleviate the stress concentration at the GBs and improve the tensile plasticity of the MPEA with heterogeneous L1 2 particle structure. The heterogeneous L1 2 particle structure obtained through two -stage aging treatment without severe mechanical deformation has attractive engineering application potential. These properties of Ni 38 Co 25 Fe 13 Cr 10 Al 7 Ti 7 MPEA with heterogeneous L1 2 particle structure have important enlightening and practical value.
关键词	Multi principal component alloys Heterostructure L12 particle
资助者	Liaoning Key Research and Development Program ; Chinese Academy of Sciences ; Natural Science Foundation of Liaoning Province ; Youth Innovation Promotion Association CAS ; IMR Innovation Fund
DOI	10.1016/j.jallcom.2024.173916
收录类别	SCI
语种	英语
资助项目	Liaoning Key Research and Development Program[2022JH2/101300080] ; Chinese Academy of Sciences[ZDBS-LY-JSC023] ; Natural Science Foundation of Liaoning Province[2023 -BS -012] ; Youth Innovation Promotion Association CAS[2021188] ; IMR Innovation Fund[2023-PY16]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001222112400001
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/321006/185933
专题	中国科学院金属研究所
通讯作者	Pang, Jingyu; Zhang, Hongwei
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, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Northeastern Univ, Sch Met, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Yang, Yitong,Pang, Jingyu,Zhang, Zhuqun,et al. Strength-ductility synergy and superior strain-hardening ability of Ni 38 Co 25 Fe 13 Cr 10 Al 7 Ti 7 multi principal element alloy through heterogeneous L1 2 structure modulation[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2024,984:10.
APA	Yang, Yitong.,Pang, Jingyu.,Zhang, Zhuqun.,Wang, Yuting.,Ji, Yu.,...&Zhang, Hongwei.(2024).Strength-ductility synergy and superior strain-hardening ability of Ni 38 Co 25 Fe 13 Cr 10 Al 7 Ti 7 multi principal element alloy through heterogeneous L1 2 structure modulation.JOURNAL OF ALLOYS AND COMPOUNDS,984,10.
MLA	Yang, Yitong,et al."Strength-ductility synergy and superior strain-hardening ability of Ni 38 Co 25 Fe 13 Cr 10 Al 7 Ti 7 multi principal element alloy through heterogeneous L1 2 structure modulation".JOURNAL OF ALLOYS AND COMPOUNDS 984(2024):10.