Influence of Heat Treatment on the Corrosion Resistance in Shape Memory Stainless Steel Based on FeMnSiCrNiCo

Autor: Sofia Salles Lantyer Marques, Rita de Cássia Mendonça Sales-Contini, Jorge Otubo, Heide Heloise Bernardi
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Alloys, Vol 2, Iss 2, Pp 110-121 (2023)
Druh dokumentu: article
ISSN: 2674-063X
DOI: 10.3390/alloys2020008
Popis: In this work, the influence of heat treatment on the corrosion resistance of shape memory stainless steel based on FeMnSiCrNiCo was evaluated. Deformed samples were annealed from 250 °C to 1050 °C for 1 h. Scanning electron microscopy (SEM-EDS) and a Vickers microhardness test were used to characterize the microstructure. Thermal analysis was performed to identify phase transformations. Corrosion resistance was evaluated in an electrochemical test in a 3.5% NaCl solution. FeMnSiCrNiCo in the deformed state had better corrosion resistance compared to other conditions. However, as the annealing temperature increased, the corrosion resistance decreased due to the formation of precipitates.
Databáze: Directory of Open Access Journals