Contact Reactive Brazing of TC4 Alloy to Al7075 Alloy with Deposited Cu Interlayer

The brazing of Titanium alloy to Aluminum alloy is of great significance for lightweight application, but the stable surface oxide film limits it. In our work, the surface oxide film was removed by the ion bombardment, the deposited Cu layer by magnetron sputtering was selected as an interlayer, and...

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Autores principales:	Mengjuan Yang, Chaonan Niu, Shengpeng Hu, Xiaoguo Song, Yinyin Pei, Jian Zhao, Weimin Long
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Al7075 TC4 contact reactive brazing Cu deposited Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/e62d377b059c4574b5222331c36057c8
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spelling	oai:doaj.org-article:e62d377b059c4574b5222331c36057c82021-11-11T18:07:14ZContact Reactive Brazing of TC4 Alloy to Al7075 Alloy with Deposited Cu Interlayer10.3390/ma142165701996-1944https://doaj.org/article/e62d377b059c4574b5222331c36057c82021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6570https://doaj.org/toc/1996-1944The brazing of Titanium alloy to Aluminum alloy is of great significance for lightweight application, but the stable surface oxide film limits it. In our work, the surface oxide film was removed by the ion bombardment, the deposited Cu layer by magnetron sputtering was selected as an interlayer, and then the contact reactive brazing of TC4 alloy to Al7075 alloy was realized. The microstructure and joining properties of TC4/Al7075 joints obtained under different parameters were observed and tested, respectively. The results revealed that the intermetallic compounds in the brazing seam reduced with the increased brazing parameters, while the reaction layer adjacent to TC4 alloy continuously thickened. The shear strength improved first and then decreased with the changing of brazing parameters, and the maximum shear strength of ~201.45 ± 4.40 MPa was obtained at 600 °C for 30 min. The fracture path of TC4/Al7075 joints changed from brittle fracture to transgranular fracture, and the intergranular fracture occurred when the brazing temperature was higher than 600 °C and the holding time exceeded 30 min. Our work provides theoretical and technological analyses for brazing TC4/Al7075 and shows potential applications for large-area brazing of titanium/aluminum.Mengjuan YangChaonan NiuShengpeng HuXiaoguo SongYinyin PeiJian ZhaoWeimin LongMDPI AGarticleAl7075TC4contact reactive brazingCu depositedTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6570, p 6570 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Al7075 TC4 contact reactive brazing Cu deposited Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	Al7075 TC4 contact reactive brazing Cu deposited Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Mengjuan Yang Chaonan Niu Shengpeng Hu Xiaoguo Song Yinyin Pei Jian Zhao Weimin Long Contact Reactive Brazing of TC4 Alloy to Al7075 Alloy with Deposited Cu Interlayer
description	The brazing of Titanium alloy to Aluminum alloy is of great significance for lightweight application, but the stable surface oxide film limits it. In our work, the surface oxide film was removed by the ion bombardment, the deposited Cu layer by magnetron sputtering was selected as an interlayer, and then the contact reactive brazing of TC4 alloy to Al7075 alloy was realized. The microstructure and joining properties of TC4/Al7075 joints obtained under different parameters were observed and tested, respectively. The results revealed that the intermetallic compounds in the brazing seam reduced with the increased brazing parameters, while the reaction layer adjacent to TC4 alloy continuously thickened. The shear strength improved first and then decreased with the changing of brazing parameters, and the maximum shear strength of ~201.45 ± 4.40 MPa was obtained at 600 °C for 30 min. The fracture path of TC4/Al7075 joints changed from brittle fracture to transgranular fracture, and the intergranular fracture occurred when the brazing temperature was higher than 600 °C and the holding time exceeded 30 min. Our work provides theoretical and technological analyses for brazing TC4/Al7075 and shows potential applications for large-area brazing of titanium/aluminum.
format	article
author	Mengjuan Yang Chaonan Niu Shengpeng Hu Xiaoguo Song Yinyin Pei Jian Zhao Weimin Long
author_facet	Mengjuan Yang Chaonan Niu Shengpeng Hu Xiaoguo Song Yinyin Pei Jian Zhao Weimin Long
author_sort	Mengjuan Yang
title	Contact Reactive Brazing of TC4 Alloy to Al7075 Alloy with Deposited Cu Interlayer
title_short	Contact Reactive Brazing of TC4 Alloy to Al7075 Alloy with Deposited Cu Interlayer
title_full	Contact Reactive Brazing of TC4 Alloy to Al7075 Alloy with Deposited Cu Interlayer
title_fullStr	Contact Reactive Brazing of TC4 Alloy to Al7075 Alloy with Deposited Cu Interlayer
title_full_unstemmed	Contact Reactive Brazing of TC4 Alloy to Al7075 Alloy with Deposited Cu Interlayer
title_sort	contact reactive brazing of tc4 alloy to al7075 alloy with deposited cu interlayer
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e62d377b059c4574b5222331c36057c8
work_keys_str_mv	AT mengjuanyang contactreactivebrazingoftc4alloytoal7075alloywithdepositedcuinterlayer AT chaonanniu contactreactivebrazingoftc4alloytoal7075alloywithdepositedcuinterlayer AT shengpenghu contactreactivebrazingoftc4alloytoal7075alloywithdepositedcuinterlayer AT xiaoguosong contactreactivebrazingoftc4alloytoal7075alloywithdepositedcuinterlayer AT yinyinpei contactreactivebrazingoftc4alloytoal7075alloywithdepositedcuinterlayer AT jianzhao contactreactivebrazingoftc4alloytoal7075alloywithdepositedcuinterlayer AT weiminlong contactreactivebrazingoftc4alloytoal7075alloywithdepositedcuinterlayer
_version_	1718431975236173824

Contact Reactive Brazing of TC4 Alloy to Al7075 Alloy with Deposited Cu Interlayer

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