A microstructural investigation on deformation mechanisms of Fe–18Cr–12Mn–0.05C metastable austenitic steels containing different amounts of nitrogen
Source abstract
Abstract
Abstract Deformation mechanisms of the Ni-free Fe–18Cr–12Mn–0.05C (wt%) austenitic steels containing 0, 0.25 and 0.44 N were investigated. Effects of N addition, strain and temperature on the formation of deformation-induced e- and α′-martensite phases were determined using transmission electron microscopy and electron back-scattered diffraction techniques. Based on the microstructural evolutions, it is proposed that deformation mechanism of these steels includes the sequence of γ → e-martensite → α′-martensite, in which the formation and stability of the e-martensite is significantly enhanced by the N content. Increased deformation temperature from 298 to 373 K reduces the formation of e-martensite (more than 80%).
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Research context
OpenAlex topics: Microstructure and Mechanical Properties of Steels · Hydrogen embrittlement and corrosion behaviors in metals · Metal Alloys Wear and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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