Effect of CaF2 addition on macro/microstructures and mechanical properties of wire and arc additive manufactured Ti-6Al-4V components

被引：34
作者：
Yin, Bo [1 ]
Ma, Hongwen [1 ]
Wang, Jingbiao [1 ]
Fang, Kun [2 ]
Zhao, Hong [1 ]
Liu, Yunfeng [2 ]
机构：
[1] Harbin Engn Univ, Coll Mech & Elect Engn, Harbin 150001, Heilongjiang, Peoples R China
[2] Harbin Fenghua Co Ltd, China Aerosp Sci & Ind Corp, Harbin 150036, Heilongjiang, Peoples R China
来源：
MATERIALS LETTERS | 2017年 / 190卷
关键词：
WAAM; Activating flux; Microstructure; Mechanical properties; Phase transformation; MICROSTRUCTURE; TITANIUM; ALLOYS;
D O I：
10.1016/j.matlet.2016.12.128
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A titanium/CaF2 component was manufactured through the combination of wire and arc additive manufacturing systems as well as activating flux. The effects of CaF2 on macro/microstructures evolution and mechanical properties were investigated. The results showed that the addition of CaF2 to Ti-6Al-4V reduced the width of component and the aspect ratio of alpha-lath, increased p volume fraction, whereas the intermittent grain boundary-alpha structure was obtained. In addition, tensile strength of the components at room temperature was significantly improved. Consequently, these findings indicated that activating fluxes offered a possibility to produce the desired microstructures and improve mechanical properties of titanium alloys during additive manufacturing. (C) 2016 Elsevier B.V. All rights reserved.
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收藏
页码：64 / 66
页数：3
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