Microstructure and Mechanical Properties of TC16 Titanium Alloy by Room Temperature Roller Die Drawing

doi:10.11900/0412.1961.2016.00424

IMR OpenIR

	Microstructure and Mechanical Properties of TC16 Titanium Alloy by Room Temperature Roller Die Drawing
	Zhang Zhiqiang; Dong Limin; Guan Shaoxuan; Yang Rui
通讯作者	Dong Limin(lmdong@imr.ac.cn)
	2017-04-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	53 期号:4 页码:415-422
摘要	Grain refinement is a challenging topic to improve mechanical properties of metallic materials, especially for titanium alloys which show great potential in aerospace and medical implants areas due to the low density and good corrosion resistance. However, severe plastic deformation (SPD) technologies which have been commonly used in laboratory in smaller scale are difficult to be realized in industrial. Considerable researches are therefore paying attention to the development of new technologies for improvement of grain refinement at relatively lower strains. In this work, the dual phase TC16 titanium alloy showing excellent room temperature ductility was investigated with emphasis on the feasibility of producing ultrafine grains by roller die drawing at room temperature. The techniques of XRD, SEM, TEM, Vickers hardness test and tensile test were employed to analyze the phase constitutes, microstructure evolutions and preliminary mechanical properties of the alloy deformed at different conditions. Results reveal that TC16 titanium alloy mainly consists of alpha and beta phases after roller die drawing at room temperature, and a small quantity of stress-induced alpha" martensite can be additionally identified inside beta grains. The grain sizes of alpha phase and beta phase decrease with strain increasing, which result to enhanced tensile strength and Vickers hardness. Indeed, the fibrous morphology of both alpha phase and beta phase with 0.3 mu m in thickness and a high value of 365 HV in Vickers hardness were revealed at the applied true strain of 2.14. Ultra-fine grains evidenced by a near-ring SAED spots were therefore achieved in the present case.
关键词	TC16 titanium alloy roller die drawing microstructure mechanical property grain refinement
资助者	Doctoral Scientific Research Starting Foundation of Liaoning Province
DOI	10.11900/0412.1961.2016.00424
收录类别	SCI
语种	英语
资助项目	Doctoral Scientific Research Starting Foundation of Liaoning Province[20141143]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000399921900004
出版者	SCIENCE PRESS
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/321006/124601
专题	中国科学院金属研究所
通讯作者	Dong Limin
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang Zhiqiang,Dong Limin,Guan Shaoxuan,et al. Microstructure and Mechanical Properties of TC16 Titanium Alloy by Room Temperature Roller Die Drawing[J]. ACTA METALLURGICA SINICA,2017,53(4):415-422.
APA	Zhang Zhiqiang,Dong Limin,Guan Shaoxuan,&Yang Rui.(2017).Microstructure and Mechanical Properties of TC16 Titanium Alloy by Room Temperature Roller Die Drawing.ACTA METALLURGICA SINICA,53(4),415-422.
MLA	Zhang Zhiqiang,et al."Microstructure and Mechanical Properties of TC16 Titanium Alloy by Room Temperature Roller Die Drawing".ACTA METALLURGICA SINICA 53.4(2017):415-422.