Mechanical Properties of Laser Welded Joint of Copper and Steel Dissimilar Metals

REN Yiwen ¹TAO Junhui ²LI Jie ²CHEN Xinqi ²ZHANG Lin ²WANG Chuanhui ²JIN Haiqin ²Qi Hongyan ²WANG Zhuo ²XIE Xing ³PAN Jie⁴

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作者信息

1. School of Physics and Mechanical&Electronical Engineering,Hubei University of Education,Wuhan 430205,Hubei,China
2. School of Physics and Mechanical&Electronical Engineering,Hubei University of Education,Wuhan 430205,Hubei,China;Institute for Functional Materials,Hubei University of Education,Wuhan 430205,Hubei,China;Hubei Engineering Research Center of Environmental Purification Materials,Hubei University of Education,Wuhan 430205,Hubei,China
3. Wuhan Second Ship Design Institute,Wuhan 430070,Hubei,China
4. School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,Hubei,China
折叠

Abstract

In this research project,copper and stainless steel were connected by two laser welding methods:straight seam welding and swing welding.Then,electronic tensile test machine,X-ray diffractometer,scanning electron microscope and metallographic microscope were used to analyze the tensile properties,macroscopic and microscopic structure morphology and phase of the welded joint.Based on the experimental results,we determined that the strength of the straight seam welded joint was higher.Because of the intermetallic com-pound near the weld in the swing welding process,it leads to stress concentration,crack cracking and strength reduction.In addition,the oscillating laser beam also leads to the disorderly direction of columnar crystal and coarse structure,which makes the joint strength de-crease.

Key words

copper steel dissimilar alloy/laser welding/mechanical properties

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基金项目

National Natural Science Foundation of China(51801057)

National Natural Science Foundation of China(51702091)

National Natural Science Foundation of China(12104140)

Natural Science Foundation of Hubei Province(2020CFB245)

Hubei Province Education Department Scientific Research Plan Guiding Project(B2017215)

Hubei Province Education Department Scientific Research Plan Guiding Project(B2021260)

Research Startup Funding of Hubei University of Education(19RC03)

Research Startup Funding of Hubei University of Education(20RC09)

2021 Science and Technology Development Plan of Henan Province(212102210336)

出版年

2023

武汉大学自然科学学报(英文版)

武汉大学

武汉大学自然科学学报(英文版)

CSTPCDCSCD北大核心

影响因子：0.066

ISSN：1007-1202

参考文献量1

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