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Anisotropy in microstructure and tensile properties of Ti-5Al-5Mo-5V-1Cr-1Fe produced via additive manufacturing
Liu, Zheng1; Zhao, ZiBo2; Liu, Jianrong2; Wang, Qingjiang2; Guo, Zhenghua1; Wang, Jie1; Yang, Guang3; Gong, Shuili3
Corresponding AuthorZhao, ZiBo(zbzhao@imr.ac.cn) ; Liu, Jianrong(jrliu@imr.ac.cn)
2020-11-04
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume798Pages:11
AbstractThis 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.
KeywordAdditive manufacturing Ti-5Al-5Mo-5V-1Cr-1Fe alloy Columnar grains Transformed alpha texture Tensile anisotropy
Funding OrganizationNational Key Research and Development Program of China ; Avic Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS
DOI10.1016/j.msea.2020.140093
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000587616500003
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/141236
Collection中国科学院金属研究所
Corresponding AuthorZhao, ZiBo; Liu, Jianrong
Affiliation1.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
Recommended Citation
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.
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