Characterization of Ti-48Al-2Cr fabricated by multi-wire arc additive manufacturing: Microstructure, mechanical, and oxidation resistance properties

被引：0
|
作者：
Li, Ze [1 ]
Li, Zhiyong [1 ]
Ren, Jieliang [1 ]
Zhou, Haiwu [1 ]
Zhang, Yingqiao [1 ]
Wei, Shouzheng [1 ]
Zhang, Yichuan [1 ]
Liu, Fuqiang [1 ]
机构：
[1] North Univ China, Coll Mat Sci & Engn, Taiyuan 030051, Shanxi, Peoples R China
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2024年
基金：
中国国家自然科学基金;
关键词：
TiAl alloy; multi-wire arc additive manufacturing; microstructure; mechanical property; oxidation resistance property; ALLOYS; BEHAVIOR; SIZE;
D O I：
10.1177/02670836241302688
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Utilizing a multi-wire arc additive manufacturing process applied with high-frequency induction heating wire technology (MWAAM-HF) proposed in this study, Ti-48Al-2Cr alloy straight-walled component was fabricated. During the MWAAM-HF process, three types of wires melt simultaneously and transfer smoothly into the weld pool to form satisfactory component without discernible cracks. The upper and lower regions have higher hardness compared to the middle region in both Z and Y direction. Along the Y direction, the upper region exhibited the highest UTS and YS, while the minimum values were observed along the Z direction. Superior wear resistance was observed in the upper and lower regions. Distinct regions exhibited different levels of high-temperature oxidation resistance and the upper region has superior high-temperature oxidation resistance.
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页数：16
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