THE TRANSFORMATIONS MORPHOLOGY BY CAVITATION EROSION OF GAS NITRITED X2CRNIMON22-5-3 DUPLEX STAINLESS STEEL

1 MICU Lavinia Madalina
Co-authors:
1 MITELEA Ion 1 BORDEASU Ilare 1 CRACIUNESCU Corneliu Marius 1 OANCA Octavian Victor
Institution:
1 „Polytechnica“ Universty of Timisoara, Timisoara, Romania, EU lavimicu@yahoo.com, ion.mitelea@upt.ro, ilarica59@gmail.com, craciunescucm@yahoo.com, octavian.oanca@yahoo.com
Conference:
24th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, June 3rd - 5th 2015
Proceedings:
Proceedings 24th International Conference on Metallurgy and Materials
Pages:
785-791
ISBN:
978-80-87294-58-1
ISSN:
2694-9296
Published:
12th January 2015
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
132 views / 26 downloads
Abstract

In this paper is analyzed, through comparison, the cavitation erosion resistance of Duplex stainless steel, with a microstructure of approx. 50% austenite and 50% ferrite, solution annealed from 1060C with water cooling and finally nitrided at 520C for 40 hours in an ammonia environment. The cavitation test results were expressed by variation of mean depth erosion with the attack time and through the correlation between the attacked surface roughness and the erosion resistance.The microstructure investigations, with an optical microscope and electronic scanning microscope, explains the erosion mechanism of the surface layer, by starting and propagation of microcracks.

Keywords: cavitation erosion, stainless steel, gas nitriding

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Scroll to Top