Scanning Speed Effect on Mechanical Properties of Ti-6Al-4V Alloy Processed by Electron Beam Additive Manufacturing

被引：57

作者：

Wang, Xiaoqing ^{[1
]}

Gong, Xibing ^{[1
]}

Chou, Kevin ^{[1
]}

机构：

[1] Univ Alabama, Dept Mech Engn, Tuscaloosa, AL 35487 USA

来源：

43RD NORTH AMERICAN MANUFACTURING RESEARCH CONFERENCE, NAMRC 43 | 2015年 / 1卷

关键词：

Electron beam additive manufacturing; mechanical properties; manoindentation; microstructure; Ti-6Al-4V alloy; LASER; NANOINDENTATION; MICROSTRUCTURES;

D O I：

10.1016/j.promfg.2015.09.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, mechanical properties in Ti-6Al-4V samples built with the powder-bed electron beam additive manufacturing (EBAM) process over a range of beam scanning speeds were experimentally investigated. Four levels of speed functions were applied to build samples, which were used to prepare the specimens for the nanoindentation test to obtain their mechanical properties. The measured averaged Young's modulus and hardness are about 111.7 similar to 119.0 GPa and 5.24 similar to 6.52 GPa, respectively. It has been found that the Young's modulus and hardness increase with the increase of scanning speed in EBAM. The scanning surface presents more superior mechanical properties than those from side surface. The mechanical properties are also correlated to the microstructure characterization of EBAM components.

引用

页码：287 / 295

页数：9

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