Anisotropy in microstructure and tensile properties of Ti-5Al-5Mo-5V-1Cr-1Fe produced via additive manufacturing

doi:10.1016/j.msea.2020.140093

IMR OpenIR

	Anisotropy in microstructure and tensile properties of Ti-5Al-5Mo-5V-1Cr-1Fe produced via additive manufacturing
	Liu, Zheng 1; Zhao, ZiBo 2; Liu, Jianrong 2; Wang, Qingjiang 2; Guo, Zhenghua 1; Wang, Jie 1; Yang, Guang 3; Gong, Shuili 3
通讯作者	Zhao, ZiBo(zbzhao@imr.ac.cn) ; Liu, Jianrong(jrliu@imr.ac.cn)
	2020-11-04
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	798 页码:11
摘要	This work investigated macroand microstructure and tensile properties of Ti-5Al-5Mo-5V-1Cr-1Fe fabricated using electron beam rapid manufacturing (EBRM). The macrostructure contained columnar prior beta grains and layer bands with gradient microstructures, which could be attributed to the large temperature gradient along the vertical direction (VD) and the multiple cycles of thermal history. The dendritic morphologies formed below the layer bands due to element micro-segregation. The microstructure in the top zones of the specimen was asso-ciated with the local cooling rate depending on the building morphology. There were obvious anisotropic tensile properties for the alloy. The sample loaded along the VD presented lower tensile strength with respect to that along the horizontal direction (HD), whereas there was a maximum tensile strength for the sample loaded along the 45 degrees direction. The ductility of the alloy displayed an opposing trend relative to the tensile strength. We respectively discussed the effects of the columnar beta grain, the beta < 100 >//VD fiber texture, and the transformed alpha texture on the tensile properties. We also proposed that the anisotropic tensile strength was mainly caused by the transformed alpha texture, and the anisotropic ductility was associated both with the columnar beta grain and the transformed alpha texture.
关键词	Additive manufacturing Ti-5Al-5Mo-5V-1Cr-1Fe alloy Columnar grains Transformed alpha texture Tensile anisotropy
资助者	National Key Research and Development Program of China ; Avic Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS
DOI	10.1016/j.msea.2020.140093
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2017YFB1103100] ; Avic Science Foundation of China[20175492002] ; National Natural Science Foundation of China[51801213] ; Youth Innovation Promotion Association CAS[2020193]
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:000587616500003
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：31[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/321006/141239
专题	中国科学院金属研究所
通讯作者	Zhao, ZiBo; Liu, Jianrong
作者单位	1.Nanchang Hangkong Univ, Sch Aeronaut Mfg Engn, Nanchang 330063, Jiangxi, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Avic Mfg Technol Inst, 1 Chaoyang Rd, Beijing 100024, Peoples R China
推荐引用方式 GB/T 7714	Liu, Zheng,Zhao, ZiBo,Liu, Jianrong,et al. Anisotropy in microstructure and tensile properties of Ti-5Al-5Mo-5V-1Cr-1Fe produced via additive manufacturing[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2020,798:11.
APA	Liu, Zheng.,Zhao, ZiBo.,Liu, Jianrong.,Wang, Qingjiang.,Guo, Zhenghua.,...&Gong, Shuili.(2020).Anisotropy in microstructure and tensile properties of Ti-5Al-5Mo-5V-1Cr-1Fe produced via additive manufacturing.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,798,11.
MLA	Liu, Zheng,et al."Anisotropy in microstructure and tensile properties of Ti-5Al-5Mo-5V-1Cr-1Fe produced via additive manufacturing".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 798(2020):11.