Communications - Scientific Letters of the University of Zilina 2012, 14(4):48-53 | DOI: 10.26552/com.C.2012.4.48-53

Surface Remelting of Multi-Phase Sintered Steel

Agata Wronska1, Agata Dudek1, Jacek Selejdak2
1 Czestochowa University of Technology, Faculty of Process & Materials Engineering and Applied Physics, Institute of Materials Engineering, Czestochowa, Poland
2 Czestochowa University of Technology, Faculty of Management, Institute of Production Czestochowa, Poland

This study presents the results of the investigations of the effect of surface remelting using arc welding (GTAW) on the microstructure and selected properties of surface layer of sintered steels 304L and 434L. It was found that in order to improve surface quality in these sinters, remelting should be carried out at lower current intensities, i.e. 30A and 40A. The surface treatment carried out in the study allowed for obtaining an uniform cellular-dendritic microstructure in surface layer. X-ray examinations demonstrated the effect of compressive stress in surface layer, which reduces the risk of cracking on the surface.

Keywords: sintered stainless steel, arc surface remelting

Published: December 30, 2012  Show citation

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Wronska, A., Dudek, A., & Selejdak, J. (2012). Surface Remelting of Multi-Phase Sintered Steel. Communications - Scientific Letters of the University of Zilina, 14(4), 48-53. doi: 10.26552/com.C.2012.4.48-53
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