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Materials and Manufacturing Processes Volume 29, 2014 - Issue 8
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Original Articles

Dissimilar Welding of H62 Brass-316L Stainless Steel Using Continuous-Wave Nd:YAG Laser

Yang Li School of Materials Science and Engineering, Tianjin University, Tianjin, P. R. China; Tianjin Key Laboratory of Advanced Joining Technology, Tianjin University, Tianjin, P. R. China
,
Shengsun Hu School of Materials Science and Engineering, Tianjin University, Tianjin, P. R. China; Tianjin Key Laboratory of Advanced Joining Technology, Tianjin University, Tianjin, P. R. China
,
Junqi Shen School of Materials Science and Engineering, Tianjin University, Tianjin, P. R. China; Tianjin Key Laboratory of Advanced Joining Technology, Tianjin University, Tianjin, P. R. ChinaCorrespondence[email protected]; [email protected]
&
Bao Hu School of Materials Science and Engineering, Tianjin University, Tianjin, P. R. China; Tianjin Key Laboratory of Advanced Joining Technology, Tianjin University, Tianjin, P. R. China
Pages 916-921 | Received 25 Apr 2013, Accepted 27 Jun 2013, Published online: 18 Jul 2014
 
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Abstract

Continuous-wave Nd:YAG laser welding of H62 brass and 316L stainless steel was studied using welded joints made with different overlap configurations. Optical and scanning electron microscopies, energy-dispersive X-ray spectroscopy, and microhardness testing were used to analyze the microstructures and mechanical properties of the joints. The welded joints with the brass-on-steel overlap configuration exhibited better performance. Elemental diffusion and dissolution—in particular, the evaporation of zinc—were observed in the welded joints. Intermetallic compounds were absent in the joints because brass and stainless steel exhibit unlimited solid solubility. Finally, the microhardness of the joints was higher than that of the brass.

Notes

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