Microstructure, roughness, and corrosion resistance of X5CrNi18-10 austenite stainless steel welded joint
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Published:2021
Issue:4
Volume:86
Page:407-413
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ISSN:0352-5139
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Container-title:Journal of the Serbian Chemical Society
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language:en
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Short-container-title:JSCS
Author:
Radojkovic Bojana1,
Jegdic Bore1ORCID,
Kovacina Jovanka1,
Stevanovic Sanja1ORCID,
Marunkic Dunja1
Affiliation:
1. University of Belgrade, Institute of Chemistry, Technology and Metallurgy, Department of Electrochemistry, Belgrade, Serbia
Abstract
The influence of the microstructure of X5CrNi18-10 stainless steel welded joint on its resistance to general, pitting, and intergranular corrosion was analyzed. The structure of weld metal, heat affected zone (HAZ) and base metal before and after electrochemical testing was analyzed using SEM/EDS. The influence of the roughness level of the welded joint on its resistance to the mentioned types of corrosion was also examined. Although the degree of sensitization of HAZ was significantly lower than the limit value, HAZ showed a noticeably greater tendency to general and pitting corrosion than weld metal and base metal. Polishing has been shown to improve significantly the corrosion resistance of HAZ than in other parts of a welded joint.
Funder
Ministry of Education, Science and Technological Development of the Republic of Serbia
Publisher
National Library of Serbia
Subject
General Chemistry