Formation of nanocrystalline and nanolaminate structures in a twinning induced plasticity Ti-12Mo alloy: The role played by {332} ?113? twinning

doi:10.1016/j.actamat.2024.120078

IMR OpenIR

	Formation of nanocrystalline and nanolaminate structures in a twinning induced plasticity Ti-12Mo alloy: The role played by {332} ?113? twinning
	Wang, Yue 1,2; Yan, Fengkai 1; Lai, Minjie 3; Li, Xiuyan 1
通讯作者	Yan, Fengkai(fkyan@imr.ac.cn)
	2024-09-01
发表期刊	ACTA MATERIALIA
ISSN	1359-6454
卷号	276 页码:11
摘要	Grain refinement is an effective strategy to strengthen metastable beta titanium alloys. {332}<113> twinning, a typical deformation mode, its role on grain refinement still remains unelucidated. Here, we produced a gradient nanostructured layer with a depth of 800 mu m in a metastable twinning induced plasticity beta-Ti-12Mo (wt.%) alloy by means of surface mechanical rolling treatment. We found that {332}<113> deformation twinning, mainly dominated the deformation at moderate strain and strain rates, refining coarse grains into submicro-structures. With increasing strain and strain rates, dislocation slip instead of {332}<113> twinning prevailed. These dislocations were first arranged into extended boundaries and then into laminated structures to coordinate deformation. Eventually, shear banding and fragmentation of laminates result in the formation of nanocrystalline with size of 34 +/- 8 nm. The nanostructured Ti-12Mo alloy exhibited the high hardness of 4.9 GPa at subsurface. The surface hardness decreased to 4.4 GPa which was mainly caused by the inhibition of stress-induced martensitic transformation alpha '' and the occurrence of its reversal transformation due to adiabatic heating induced by the high strain rate. This work expands our knowledge on strengthening beta titanium alloys by {332}<113> twinning induced grain refinement at different deformation conditions.
关键词	Beta-titanium alloy {332}(113) twinning Twinning induced plasticity Laminated structures Surface mechanical rolling treatment
资助者	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Talents Program of Chinese Academy of Sciences and Program of Shenyang National Laboratory for Materials Science
DOI	10.1016/j.actamat.2024.120078
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52171129] ; National Natural Science Foundation of China[52225102] ; National Natural Science Foundation of China[U2230205] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0510400] ; Talents Program of Chinese Academy of Sciences and Program of Shenyang National Laboratory for Materials Science
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001259498500001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：5[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/321006/187686
专题	中国科学院金属研究所
通讯作者	Yan, Fengkai
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yue,Yan, Fengkai,Lai, Minjie,et al. Formation of nanocrystalline and nanolaminate structures in a twinning induced plasticity Ti-12Mo alloy: The role played by {332} ?113? twinning[J]. ACTA MATERIALIA,2024,276:11.
APA	Wang, Yue,Yan, Fengkai,Lai, Minjie,&Li, Xiuyan.(2024).Formation of nanocrystalline and nanolaminate structures in a twinning induced plasticity Ti-12Mo alloy: The role played by {332} ?113? twinning.ACTA MATERIALIA,276,11.
MLA	Wang, Yue,et al."Formation of nanocrystalline and nanolaminate structures in a twinning induced plasticity Ti-12Mo alloy: The role played by {332} ?113? twinning".ACTA MATERIALIA 276(2024):11.