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

被引：36

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.

引用

页码：64 / 66

页数：3

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