Microstructure and mechanical properties of Ti2Ni alloy fabricated by direct energy deposition

被引：1

作者：

Tian, Yinbao ^{[1
,2
]}

Liang, Zhetao ^{[1
]}

Cai, Yangchuan ^{[1
]}

Jiang, Hongbing ^{[2
]}

Chen, Minfang ^{[1
]}

Han, Jian ^{[1
]}

机构：

[1] Tianjin Univ Technol, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China

[2] Jiangsu Yasheng Met Prod Co Ltd, Proc Res Inst, Taizhou, Jiangsu, Peoples R China

来源：

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 2024年 / 29卷 / 01期

关键词：

Ti2Ni alloy; additive manufacturing; microstructure; mechanical properties; WIRE;

D O I：

10.1177/13621718231216674

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It is difficult to prepare Ti2Ni alloys using traditional single-wire arc additive manufacturing. In this study, a Ti2Ni alloy wall was fabricated in situ by double-wire arc additive manufacturing with pure Ti and Ni wires, and the resulting material has the potential to be applied to spacecraft and ground armor protection. In the stable region, the Ti: Ni content ratio was close to 2:1 after stabilization, indicating that the as-built wall was very close to the designed composition (Ti2Ni). From the top of the wall to the substrate, the microstructure evolved as follows: Ti2Ni + NiTi -> Ti2Ni + NiTi + alpha-Ti -> alpha-Ti + Ti2Ni. In the stable region, the hardness remained stable at approximately 660 HV0.5.

引用

页码：47 / 51

页数：5

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