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Volume 11
Issue 12
10.3390/cryst11121496
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Article

Reactive Air Brazing of TiAl Alloy Using Ag-CuO: Microstructure and Joint Properties

by
Haoran Yang
,
Xiaoqing Si
*,
Chun Li
and
Jian Cao
State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
*
Author to whom correspondence should be addressed.
Crystals 2021, 11(12), 1496; https://doi.org/10.3390/cryst11121496
Submission received: 5 November 2021 / Revised: 23 November 2021 / Accepted: 30 November 2021 / Published: 2 December 2021
(This article belongs to the Special Issue Preparation, Microstructure Evolution and Mechanical Study of the Brazed Joints)
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Abstract

TiAl alloy was successfully brazed with Ag-CuO filler in air atmosphere under simple technical conditions. The wettability of a series of Ag-CuO fillers on TiAl was analyzed. Ag-2mol%CuO filler possessed good wetting behavior on TiAl alloy. The microstructure and mechanical properties of the brazed joints were investigated. Oxide layers can be found on both sides, which can be divided into external TiO2-rich layer and internal Al2O3-rich layer. The maximum shear strength of the joint was obtained at 1020 °C holding for 20 min.
Keywords: reactive air brazing; TiAl alloy; wettability; interfacial microstructure reactive air brazing; TiAl alloy; wettability; interfacial microstructure

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MDPI and ACS Style

Yang, H.; Si, X.; Li, C.; Cao, J. Reactive Air Brazing of TiAl Alloy Using Ag-CuO: Microstructure and Joint Properties. Crystals 2021, 11, 1496. https://doi.org/10.3390/cryst11121496

AMA Style

Yang H, Si X, Li C, Cao J. Reactive Air Brazing of TiAl Alloy Using Ag-CuO: Microstructure and Joint Properties. Crystals. 2021; 11(12):1496. https://doi.org/10.3390/cryst11121496

Chicago/Turabian Style

Yang, Haoran, Xiaoqing Si, Chun Li, and Jian Cao. 2021. "Reactive Air Brazing of TiAl Alloy Using Ag-CuO: Microstructure and Joint Properties" Crystals 11, no. 12: 1496. https://doi.org/10.3390/cryst11121496

APA Style

Yang, H., Si, X., Li, C., & Cao, J. (2021). Reactive Air Brazing of TiAl Alloy Using Ag-CuO: Microstructure and Joint Properties. Crystals, 11(12), 1496. https://doi.org/10.3390/cryst11121496

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