Abstract
The consequences of aging at 400 and 475 °C on the mechanical properties, corrosion resistance, and magnetic properties of the ferritic stainless steel (SS) AISI 444 were investigated. Age hardening was measured as a function of aging time at both temperatures and was found to be more intense at 475 °C. The localized corrosion susceptibility increased, while the impact toughness decreased with aging time. These two effects were also more important at 475 °C. Unlike duplex SSs, AISI 444 did not present any variation in coercive force or Curie temperature with aging time. The effects on the Mössbauer spectra were also determined and analyzed.
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Souza, J.A., Abreu, H.F.G., Nascimento, A.M. et al. Effects of low-temperature aging on AISI 444 steel. J. of Materi Eng and Perform 14, 367–372 (2005). https://doi.org/10.1361/10599490524020
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DOI: https://doi.org/10.1361/10599490524020