Simultaneously enhanced strength and ductility in a hybrid nanostructured metal

doi:10.1016/j.msea.2025.147959

IMR OpenIR

	Simultaneously enhanced strength and ductility in a hybrid nanostructured metal
	Lei, Y. B.1; Xie, S. L.1; Sun, Y. T.2; Niu, Z. M.1; Wang, Z. B.1
通讯作者	Wang, Z. B.(zbwang@imr.ac.cn)
	2025-04-01
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	927 页码:7
摘要	A hybrid nanostructured surface layer has been produced on interstitial-free steel by means of surface mechanical rolling treatment and subsequent chromizing treatment. The near-surface layer consists of Cr-enriched grain boundary zones enclosing ultra-fine grains (GBZ-UFG structure), and the subsurface layer consists of nanograins with increasing size along depth (gradient structure). Uniaxial tension measurements revealed that the yield strength is doubled while the uniform elongation increases similar to 24.5 % in hybrid nanostructured samples compared with in coarse-grained counterparts. Investigations on microstructure and straining mechanisms demonstrated that the unique GBZ-UFG structure enhances the deformation hardening capability and ductility in the near- surface layer, contributing to the significantly enhanced strength-ductility synergy together with the enhancement by the gradient structured subsurface layer. This work developed a novel grain boundary engineering strategy to manipulate mechanical properties of metals.
关键词	Surface mechanical rolling treatment Chromizing Interstitial-free steel Hybrid nanostructure Strength and ductility
资助者	Chinese Academy of Sciences ; CAS-HK Joint Laboratory of Nanomaterials and Mechanics ; Shenyang National Laboratory for Materials Science
DOI	10.1016/j.msea.2025.147959
收录类别	SCI
语种	英语
资助项目	Chinese Academy of Sciences[XDB0510303] ; CAS-HK Joint Laboratory of Nanomaterials and Mechanics ; Shenyang National Laboratory for Materials Science
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:001424239900001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/180114
专题	中国科学院金属研究所
通讯作者	Wang, Z. B.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Liaoning Acad Mat, Inst Mat Plainificat, Shenyang 110167, Peoples R China
推荐引用方式 GB/T 7714	Lei, Y. B.,Xie, S. L.,Sun, Y. T.,et al. Simultaneously enhanced strength and ductility in a hybrid nanostructured metal[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2025,927:7.
APA	Lei, Y. B.,Xie, S. L.,Sun, Y. T.,Niu, Z. M.,&Wang, Z. B..(2025).Simultaneously enhanced strength and ductility in a hybrid nanostructured metal.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,927,7.
MLA	Lei, Y. B.,et al."Simultaneously enhanced strength and ductility in a hybrid nanostructured metal".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 927(2025):7.