Effects of Part Size on Microstructure and Mechanical Properties of Ti-6Al-4V Alloy Fabricated by Electron Beam Melting

被引：0

作者：

Wang Zhe ^{[1
]}

Zhang Jun ^{[1
]}

Li Shujun ^{[2
]}

Hou Wentao ^{[2
]}

Hao Yulin ^{[2
]}

Yang Rui ^{[2
]}

机构：

[1] Shenyang Univ, Shenyang 110044, Peoples R China

[2] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2014年 / 43卷

关键词：

electron beam melting; Ti-6Al-4V; part size; microstructures; mechanical properties;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effects of part size on microstructure and mechanical properties of of Ti-6Al-4V alloy fabricated by electron beam melting were investigated. The results indicate that EBM Ti-6Al-4V specimens mainly consist of alpha+beta phase. The a lamellas become thinner and contain higher density of dislocations with decrease of the specimen diameter, which result in higher strength and lower ductility of EBM specimens. Above relation between part size and mechanical properties of EBM Ti-6Al-4V specimens is obvious when the diameter of the specimens is less than 4 mm, and no significant differences are found between strength and ductility for specimens with larger diameter. The thickness of the a lamellas increases with the distance from the building plate and tends to remain stable values at the certain building distance. The unstable a lamellas area decreases with the smaller specimens.

引用

页码：161 / 164

页数：4

共 7 条

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