Corrosion Resistance of Inconel 625 and Austenitic Steel M41 after Laser Claddings

Abstract:

The present paper explores the impact of laser cladding parameters on the corrosion behavior of the resulting surface. Powders of Inconel 625 and austenitic Metco 41C steel were deposited on steel substrate. It was confirmed that the level of dilution has profound impact on the corrosion resistance and that dilution has to be minimized. However, the chemical composition of the cladding is altered even in the course of the cladding process, a fact which is related to the increase in the substrate temperature. The cladding process was optimized to achieve maximum corrosion resistance. The results were verified and validated using microscopic observation, chemical analysis and corrosion testing.

• Periodical: Key Engineering Materials (Volume 647)
• Pages: 115-120
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.647.115
• Online since: May 2015
• Authors: Stanislav Němeček*, Lukáš Fiedler, Pavla Fišerová
• Keywords: Cladding Microstructure, Corrosion, Dilution, Laser

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