A novel method for improving interfacial joining strength of vacuum brazed TiAl/GH3536 thin-walled structure by Au coating

Lightweight components and materials based on the joining of dissimilar materials have attracted wide attention in aerospace field. To obtain the optimized micromorphology and interfacial microstructure of the brazed joints, a new method of Au layer deposition on TiAl base metal was proposed to assi...

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Main Authors: Luo, Yun, Hu, Shengpeng, Song, Xiaoguo, Aprilia, Aprilia, Yang, Yongjing, Zhou, Wei
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2023
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Online Access:https://hdl.handle.net/10356/171374
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1713742023-10-23T06:15:40Z A novel method for improving interfacial joining strength of vacuum brazed TiAl/GH3536 thin-walled structure by Au coating Luo, Yun Hu, Shengpeng Song, Xiaoguo Aprilia, Aprilia Yang, Yongjing Zhou, Wei School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Thin-Walled Structure Microstructures Lightweight components and materials based on the joining of dissimilar materials have attracted wide attention in aerospace field. To obtain the optimized micromorphology and interfacial microstructure of the brazed joints, a new method of Au layer deposition on TiAl base metal was proposed to assist the brazing of TiAl plate to GH3536 thin-walled structure. Significantly, the design of Au layer affected the brazing fillet, dissolution of GH3536 core and the evolution of interface, and then the maximum force under tensile loading of the hetero-thin-walled structure. The effect of Au layer thickness on the interfacial microstructure and mechanical properties was discussed in detail. Upon the deposition of an Au layer with a concentration of 0.2 wt% onto the TiAl plate, the load-bearing capacity of the brazed thin-walled structure was observed to undergo a significant enhancement. Specifically, the maximum force sustained under tensile loading was measured to be 391 N, thereby exhibiting a remarkable increase of 117 % relative to that of the Au-free system. The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (Grant Nos. 52175307 and 51905125) and the Taishan Scholars Foundation of Shandong Province, China (No. tsqn201812128). 2023-10-23T06:15:40Z 2023-10-23T06:15:40Z 2023 Journal Article Luo, Y., Hu, S., Song, X., Aprilia, A., Yang, Y. & Zhou, W. (2023). A novel method for improving interfacial joining strength of vacuum brazed TiAl/GH3536 thin-walled structure by Au coating. Thin-Walled Structures, 190, 110915-. https://dx.doi.org/10.1016/j.tws.2023.110915 0263-8231 https://hdl.handle.net/10356/171374 10.1016/j.tws.2023.110915 2-s2.0-85164246773 190 110915 en Thin-Walled Structures © 2023 Published by Elsevier Ltd. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Mechanical engineering
Thin-Walled Structure
Microstructures
spellingShingle Engineering::Mechanical engineering
Thin-Walled Structure
Microstructures
Luo, Yun
Hu, Shengpeng
Song, Xiaoguo
Aprilia, Aprilia
Yang, Yongjing
Zhou, Wei
A novel method for improving interfacial joining strength of vacuum brazed TiAl/GH3536 thin-walled structure by Au coating
description Lightweight components and materials based on the joining of dissimilar materials have attracted wide attention in aerospace field. To obtain the optimized micromorphology and interfacial microstructure of the brazed joints, a new method of Au layer deposition on TiAl base metal was proposed to assist the brazing of TiAl plate to GH3536 thin-walled structure. Significantly, the design of Au layer affected the brazing fillet, dissolution of GH3536 core and the evolution of interface, and then the maximum force under tensile loading of the hetero-thin-walled structure. The effect of Au layer thickness on the interfacial microstructure and mechanical properties was discussed in detail. Upon the deposition of an Au layer with a concentration of 0.2 wt% onto the TiAl plate, the load-bearing capacity of the brazed thin-walled structure was observed to undergo a significant enhancement. Specifically, the maximum force sustained under tensile loading was measured to be 391 N, thereby exhibiting a remarkable increase of 117 % relative to that of the Au-free system.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Luo, Yun
Hu, Shengpeng
Song, Xiaoguo
Aprilia, Aprilia
Yang, Yongjing
Zhou, Wei
format Article
author Luo, Yun
Hu, Shengpeng
Song, Xiaoguo
Aprilia, Aprilia
Yang, Yongjing
Zhou, Wei
author_sort Luo, Yun
title A novel method for improving interfacial joining strength of vacuum brazed TiAl/GH3536 thin-walled structure by Au coating
title_short A novel method for improving interfacial joining strength of vacuum brazed TiAl/GH3536 thin-walled structure by Au coating
title_full A novel method for improving interfacial joining strength of vacuum brazed TiAl/GH3536 thin-walled structure by Au coating
title_fullStr A novel method for improving interfacial joining strength of vacuum brazed TiAl/GH3536 thin-walled structure by Au coating
title_full_unstemmed A novel method for improving interfacial joining strength of vacuum brazed TiAl/GH3536 thin-walled structure by Au coating
title_sort novel method for improving interfacial joining strength of vacuum brazed tial/gh3536 thin-walled structure by au coating
publishDate 2023
url https://hdl.handle.net/10356/171374
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