Achieving large near-linear elasticity, low modulus, and high strength in a metastable β-Tialloy by mild cold rolling

doi:10.1016/j.jmst.2023.11.066

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Achieving large near-linear elasticity, low modulus, and high strength in a metastable β-Tialloy by mild cold rolling
	Fu, Yu 3,4; Xiao, Wenlong 2,4; Rong, Jian 4; Ren L(任磊)1; Peng, Huabei 3; Wen, Yuhua 3; Zhao, Xinqing 4; Ma, Chaoli 2,4
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2024-08-01
卷号	189 页码:1-12
关键词	Titanium alloys Martensitic transformation Young's modulus Elasticity Mechanical properties
ISSN号	1005-0302
DOI	10.1016/j.jmst.2023.11.066
通讯作者	Xiao, Wenlong(wlxiao@buaa.edu.cn)
英文摘要	Simultaneously achieving high elasticity, low modulus, and high strength in Ti alloy has been a longstanding challenge. In this study, cold rolling was conducted to modulate the martensitic transformation of the Ti-15Nb-5Zr-4Sn-1Fe alloy to address this challenge. The 10% cold rolling process was primarily accommodated by a novel stress-induced sequential beta-to- alpha '' -to- alpha ' martensitic transformation accompanied by the disappearance of omega phase, which was sufficient to induce adequate martensite and defects to suppress the initial rapid stress-induced martensitic transformation, without destroying the equiaxed shape of prior beta grains. Consequently, the novel sequential phase transformation led to a substantial decrease in Young's modulus by 50.5% while increasing the strength, resulting in an excellent combination of large near-linear elasticity of 2.34%, low modulus of 45 GPa, and high strength of 1093 MPa. The obtained large near-linear elasticity was mainly contributed by the concurrent low modulus and high strength obeying Hooke's law. These findings provide valuable insights into the attainment of concurrent high elasticity and low modulus in Ti alloys by regulating the stress-induced sequential martensitic transformation. (c) 2024 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
分类号	一类
资助项目	National Natural Science Foundation of China[51671012] ; National Natural Science Foundation of China[52001018] ; Youth Talent Support Program of Beihang University
WOS关键词	LOW YOUNGS MODULUS ; MARTENSITIC-TRANSFORMATION ; DEFORMATION-BEHAVIOR ; TI-6AL-4V ALLOY ; PHASE ; TITANIUM ; FABRICATION ; DESIGN ; STRAIN
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:001175511100001
资助机构	National Natural Science Foundation of China ; Youth Talent Support Program of Beihang University
其他责任者	Xiao, Wenlong
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/94744]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing 100190, Peoples R China 2.Tianmushan Lab, Hangzhou 310023, Peoples R China; 3.Sichuan Univ, Scholl Mech Engn, Chengdu 610065, Sichuan, Peoples R China; 4.Beihang Univ, Sch Mat Sci & Engn, Key Lab Aerosp Adv Mat & Performance, Minist Educ, Beijing 100191, Peoples R China;
推荐引用方式 GB/T 7714	Fu, Yu,Xiao, Wenlong,Rong, Jian,et al. Achieving large near-linear elasticity, low modulus, and high strength in a metastable β-Tialloy by mild cold rolling[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2024,189:1-12.
APA	Fu, Yu.,Xiao, Wenlong.,Rong, Jian.,任磊.,Peng, Huabei.,...&Ma, Chaoli.(2024).Achieving large near-linear elasticity, low modulus, and high strength in a metastable β-Tialloy by mild cold rolling.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,189,1-12.
MLA	Fu, Yu,et al."Achieving large near-linear elasticity, low modulus, and high strength in a metastable β-Tialloy by mild cold rolling".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 189(2024):1-12.