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CAVITATION RESISTANT LAYERS FROM CORODUR 65 ALLOY DEPOSITED BY TIG WELDING ON DUPLEX STAINLESS STEEL

1 MUTAȘCU Daniel Paul
Co-authors:
1 MITELEA Ion 1 BORDEAȘU Ilare 1 UȚU Ion-Dragoș 1 CRĂCIUNESCU Corneliu Marius
Institution:
1 Politehnica University of Timisoara, Timisoara, Romania, EU, daniel.mutascu@student.upt.ro, ion.mitelea@upt.ro, ilare.bordeasu@upt.ro, dragos.utu@upt.ro, corneliu.craciunescu@upt.ro
Conference:
30th Anniversary International Conference on Metallurgy and Materials, Brno, Czech Republic, EU, May 26 - 28, 2021
Proceedings:
Proceedings 30th Anniversary International Conference on Metallurgy and Materials
Pages:
508-513
ISBN:
978-80-87294-99-4
ISSN:
2694-9296
DOI:
https://doi.org/10.37904/metal.2021.4135
Published:
15th September 2021
Proceedings of the conference have already been published in Scopus and we are waiting for evaluation and potential indexing in Web of Science.
Metrics:
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Abstract

The CORODUR 65 alloy delivered in the form of flux-cored wire electrode was deposited by TIG welding process on the surface of a duplex stainless steel in order to improve the cavitation erosion resistance of the technical components which are working in aggressive environments. Cavitation tests were performed using ultrasonic vibrating equipment that meets the requirements of the ASTM G32 - 2010 standard. The microstructure of the deposited layers consisted of complex carbides in a hardened alloy matrix with Cr solid solution which provides a high hardness and a significant increase of the cavitation erosion resistance compared to the base metal.

Keywords: Alloy Corodur 65, TIG welding, cavitation resistance, microstructure

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