| Issue |
E3S Web Conf.
Volume 121, 2019
I International Conference “Corrosion in the Oil and Gas Industry”
|
|
|---|---|---|
| Article Number | 01011 | |
| Number of page(s) | 4 | |
| Section | Corrosion Monitoring | |
| DOI | https://doi.org/10.1051/e3sconf/201912101011 | |
| Published online | 14 October 2019 | |
Development of new approaches to the study of pitting corrosion resistance of stainless steels obtained by selective laser melting
NRC “Kurchatov Institute” CRISM “Prometey”, 191015 St. Petersburg, 49 Spalernaya str., Russia
* Corresponding author: npk3@crism.ru
This paper presents the results of comparative corrosion resistance studies of stainless steels manufactured by selective laser melting (SLM) in the initial state with subsequent heat treatment and machining. Pitting corrosion tests are carried out, according to ASTM G48 method A in 10% FeCl3·6H2O solution at elevated temperature and exposure time for 5h. The studies were performed on the AISI 321 and AISI 316L stainless steels manufactured by SLM. It was obtained that laser scanning speed decrease led to density rise by other SLM parameters being equal. Porosity affected to the stainless steel corrosion behaviour significant. Metal density decrease resulted to corrosion rate rise. Microstructure examination showed that pitting corrosion development depended on surface steel condition.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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