Tribological behavior and microstructural characterization of austenitic stainless steel stabilized with Nb and V

This study deals with the influence of the addition of vanadium and niobium with concentrations of 1.2% and 0.14%, respectively, on the variation of the microstructure, and the tribological behavior of an AISI309 austenitic stainless steel. The studied specimens were structurally characterized by op...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-03, Vol.1818 (1), p.12159
Main Authors: Gharbi, A., Himour, A., Ghelloudj, O., Bouhamla, K., Abderrahmane, S., Chouchane, T., Ramoul, C. E., Berdjane, D.
Format: Article
Language:English
Subjects:
Austenitic stainless steels
Chromium carbide
Coefficient of friction
Frictional wear
Microscopy
Microstructure
Niobium carbide
Optical microscopy
Physics
Stainless steel
Tribology
Vanadium carbide
Wear resistance
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Summary:This study deals with the influence of the addition of vanadium and niobium with concentrations of 1.2% and 0.14%, respectively, on the variation of the microstructure, and the tribological behavior of an AISI309 austenitic stainless steel. The studied specimens were structurally characterized by optical microscopy, scanning electron microscopy (SEM) X-ray diffraction and and differential scanning calorimetry (DSC). These samples were also subjected to a tribological study using the friction wear test. The results show that the addition of vanadium and niobium causes a precipitation of stable carbides (VC, NbC) which in mm causes a decrease of the chromium carbide precipitation rate. Tribological test results have also shown that the addition of these two elements improves the wear resistance of AISI309 austenitic stainless steel by decreasing the coefficient of friction fr om 0.824 to 0.554.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1818/1/012159