PRIMARY AND SECONDARY AGING EFFECT ON THE CAVITATION EROSION BEHAVIOR OF 17-4 PH STAINLESS STEELS

1 KATONA Ştefan-Eusebiu
Co-authors:
2 KARANCSI Olimpiu 1 BORDEAŞU Ilare 1 MITELEA Ion 1 CRĂCIUNESCU Corneliu Marius
Institutions:
1 Politehnica University of Timisoara, Timisoara, Romania, EU, keusebiu@yahoo.com, ilarica59@gmail.com, ion.mitelea@upt.ro, craciunescucm@yahoo.com
2 Victor Babes University of Medicine and Pharmacy Timisoara, Timisoara, Romania, EU, olimpiu.karancsi@dentalexperts.ro
Conference:
25th Anniversary International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 25th - 27th 2016
Proceedings:
Proceedings 25th Anniversary International Conference on Metallurgy and Materials
Pages:
543-548
ISBN:
978-80-87294-67-3
ISSN:
2694-9296
Published:
14th December 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
89 views / 26 downloads
Abstract

Austenitization temperature of these steels can be used as a control measure of the transformation characteristics. Paper analyses the cavitation behaviour of a steel subjected to solution treatment at a lower temperature (950 °C), after which a primary aging at 700 °C and a tempering at 450 °C, were applied. The cavitation tests were conducted on a vibratory facility with piezoelectric crystals, in conformity with the prescription given by the ASTM G32-2010 Standard. The variation curves of mass losses and their speed during the test period, along with the hardness measurements and metallographic examinations, explain the degradation mechanism of the surface at the impact of the cavitation bubbles from the hydrodynamic field.

Keywords: 17-4 PH stainless steel, cavitation erosion, characteristic curves, microstructure

© 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.

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