In:
International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 114, No. 12 ( 2023-12-27), p. 1070-1079
Kurzfassung:
The mechanical properties and corrosion resistance of annealed superferritic stainless steel model alloy 25Cr–6Mo–5Ni were investigated in 0.6 M NaCl solution. The microstructure consisted of a ferrite matrix and eutectoid phase with a lamellar structure distributed at grain boundaries and within the ferrite grains with a spherical morphology. Tensile and impact results suggested brittle behavior of the model alloy. Fractography analysis revealed typical cleavage facets, river patterns and micro-cracks at grain boundaries and across the ferrite grains. Pitting corrosion began within the eutectoid phase, which contains in chrome depletion zones. Electrochemical impedance spectroscopy measurements suggest that the breakdown of passive films was more susceptible in the eutectoid phase.
Materialart:
Online-Ressource
ISSN:
1862-5282
,
2195-8556
DOI:
10.1515/ijmr-2021-8447
Sprache:
Englisch
Verlag:
Walter de Gruyter GmbH
Publikationsdatum:
2023
ZDB Id:
2232675-3
ZDB Id:
2128058-7
ZDB Id:
203021-4
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