Understanding the oxidation behavior of TiAl alloy joints brazed using Ti and Ni based filler

被引：3

作者：

Ming, Anran ^{[1
]}

Li, Chun ^{[1
]}

Liu, Yongxu ^{[1
]}

Chen, Lei ^{[1
]}

Zhang, Chenghao ^{[1
]}

Si, Xiaoqing ^{[1
]}

Dai, Xiangyu ^{[1
]}

Qi, Junlei ^{[1
]}

Cao, Jian ^{[1
]}

机构：

[1] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2024年 / 28卷

基金：

中国国家自然科学基金;

关键词：

TiAl alloy; TiZrNiCu filler; BNi-2; filler; High -temperature oxidation behavior; HIGH-TEMPERATURE OXIDATION; BRAZING HIGH NB; THERMODYNAMIC ASSESSMENT; MECHANICAL-PROPERTIES; MICROSTRUCTURE; INTERMETALLICS; COATINGS; ELEMENTS; FOIL; ZR;

D O I：

10.1016/j.jmrt.2023.12.040

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Vacuum brazing of TiAl alloy is achieved using TiZrNiCu fillers and BNi-2 fillers. The oxidation behavior of the two kinds of TiAl alloy joints is investigated in air at 800 degrees C. The influence of high-temperature oxidation on the microstructure and mechanical properties of the joints are characterized by scanning electron microscopy, X-ray diffraction, transmission electron microscopy, and shear tests. It is found that long-term oxidation does not have a large effect on the microstructure of joints. However, the fillet of the brazed joint achieved via BNi-2 fillers forms longitudinal solidification cracks, which proved that the brazed joint using TiZrNiCu fillers shows more excellent oxidation resistance.

引用

页码：2033 / 2044

页数：12

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