Laser assisted diffusion bonding of TC4 titanium alloy to 301 stainless steel using a Ni interlayer

Yu Meng; Xiaoyan Gu; Meng Cui; Xiaopeng Gu; Xiaohui Zhao

Journal of Materials Research and Technology (Nov 2022)

Laser assisted diffusion bonding of TC4 titanium alloy to 301 stainless steel using a Ni interlayer

Yu Meng,
Xiaoyan Gu,
Meng Cui,
Xiaopeng Gu,
Xiaohui Zhao

Affiliations

Yu Meng: Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun 130022, China
Xiaoyan Gu: Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun 130022, China
Meng Cui: Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun 130022, China
Xiaopeng Gu: Corresponding author.; Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun 130022, China
Xiaohui Zhao: Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun 130022, China

Journal volume & issue: Vol. 21
pp. 739 – 748

Abstract

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Ni interlayer was applied in the lap welding of Ti6Al4V titanium (Ti) alloy and 301 stainless steel (SS). By adjusting the welding parameters, the SS irradiated by the laser was not completely penetrated. The SS/Ni and Ni/Ti interfaces were metallurgically bonded due to indirect heating. Two bonding interfaces formed based on solid phase diffusion bonding and eutectic reaction. As the laser power increased, the thickness of the remaining Ni interlayer gradually decreased. A Ni transition layer, as barrier to mixing of the two base materials can prevent the formation of Ti–Fe IMCs. The shear test results showed that the shear strength of the joint increased first and then decreased with the increase of laser power, and the maximum shear strength of joint was 269.8 MPa.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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