Effects of Microstructure and Strain Rate on Dynamic Mechanical Properties and Adiabatic Shear Band of TC4 Alloy

doi:10.11900/0412.1961.2021.00530

IMR OpenIR

	Effects of Microstructure and Strain Rate on Dynamic Mechanical Properties and Adiabatic Shear Band of TC4 Alloy
	Chen Wei 1; Zhang Huan 1; Mu Juan 1; Zhu Zhengwang 2; Zhang Haifeng 2; Wang Yandong 1
通讯作者	Mu Juan(muj@atm.neu.edu.cn)
	2022-10-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	58 期号:10 页码:1271-1280
摘要	Under dynamic load, shear bands constitute the main deformation mode comparaed with quasistatic deformation. This study systematically investigates the influence of microstructures and strain rates of Ti-6Al-4V (TC4) alloys on their adiabatic shear behavior. TC4 alloys with three types of microstructures (lamellar, bimodal, and equiaxial) were successfully obtained via different thermal treatments. The dynamic mechanical properties, such as the critical shear strain rates of the hardening, softening transformation, maximum shear strength, critical shear strain rates of adiabatic shear-band nucleation and bearing time of the three types of microstructures were compared. Results indicate that compared with the lamellar bimodal and equiaxial TC4 alloys, the lamellar TC4 alloy shows the best dynamic mechanical properties, achieving higher shear strength and critical shear strain rates as well as the lowest adiabatic shear sensitivity. Microstructural analysis reveals that the adiabatic shear bands that formed in the three types of alloys are brittle. The width of the shear band decreases with increasing shear strain rate. Furthermore, at the same shear strain rate, the order of the widths of the shear bands is as follows: lamellar TC4 alloy > bimodal TC4 alloy > equiaxial TC4 alloy.
关键词	TC4 alloy dynamic mechanical property adiabatic shear sensitivity shear band
资助者	National Natural Science Foundation of China ; National KeyLaboratory Fund of China
DOI	10.11900/0412.1961.2021.00530
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51771049] ; National Natural Science Foundation of China[51790484] ; National KeyLaboratory Fund of China[JCKYS2020602005]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000856905300005
出版者	SCIENCE PRESS
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/321006/175510
专题	中国科学院金属研究所
通讯作者	Mu Juan
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Tixure Mat, Minist Educ, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Shi Changxu Adv Mat Innovat Ctr, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Chen Wei,Zhang Huan,Mu Juan,et al. Effects of Microstructure and Strain Rate on Dynamic Mechanical Properties and Adiabatic Shear Band of TC4 Alloy[J]. ACTA METALLURGICA SINICA,2022,58(10):1271-1280.
APA	Chen Wei,Zhang Huan,Mu Juan,Zhu Zhengwang,Zhang Haifeng,&Wang Yandong.(2022).Effects of Microstructure and Strain Rate on Dynamic Mechanical Properties and Adiabatic Shear Band of TC4 Alloy.ACTA METALLURGICA SINICA,58(10),1271-1280.
MLA	Chen Wei,et al."Effects of Microstructure and Strain Rate on Dynamic Mechanical Properties and Adiabatic Shear Band of TC4 Alloy".ACTA METALLURGICA SINICA 58.10(2022):1271-1280.