Research on Microstructure and Properties of Plasma Powder Spray Welding Layer Based on 3D Printing

Abstract:

Plasma powder spray welding method is used for depositing successive layers of metal, which forms a 3-Demensional (3D) solid component. Fe45 alloy powder is chosen to spray welding on Q235 steel. Welding process parameters of plasma powder spray welding are studied, which affected the performance of carbon steel weld layer. Then changes of alloy powder spray welding and influences of weld microstructure after spray welding are analyzed. Experiments results show that in the case of only changing transferred arc current, the microstructure and mechanical properties of the weld is obviously better, grain size distributes uniformity, and hardness is moderate.

• Periodical: Advanced Materials Research (Volumes 989-994)
• Pages: 763-766
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.989-994.763
• Online since: July 2014
• Authors: Embabo Meheretu*, Zhong Min Wang, Hai Chuan Han
• Keywords: Microstructure, Plasma Powder Spray Welding, Process Parameter, Property

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