Fady M. Elsabbagh, Ahmed El-Sabbagh
Super duplex stainless steel (SDSS) is regarded as a composite formed from a microstructure containing approximately equal mixtures of two primary constituents, namely γ-austenite and α-ferrite phases, along with secondary precipitates such as sigma and chi. This study aims to investigate the relationship between toughness and corrosion behavior of SDSS (UNS 32760) relative to its microstructure constituents. The research methodology involves experimental analysis, comparing SDSS with fully austenitic (SASS, UNS N08367) and fully ferritic (FSS, UNS S42900) steels, simulating the primary components of the composite. The composite samples underwent solution annealing, imparting a microstructure of γ austenite and α ferrite grains, followed by various isothermal heat treatment cycles designed to facilitate the formation of secondary phase precipitates. Tests for impact toughness and corrosion (specific weight loss) were conducted on the annealed and isothermally treated samples. Utilizing the composite rule of mixtures (ROM), the study analyzed the correlation between toughness and corrosion properties of SDSS, aiming to define the impact of microstructural constituents on performance outcomes.
@article{02daea51-6865-48df-882b-0eaac2c3d813,
title={Analysis of Super Duplex Stainless Steel Properties as an Austenite-Ferrite Composite},
author={Fady M. Elsabbagh and Ahmed El-Sabbagh},
year={2015},
language={en}
}TY - JOUR TI - Analysis of Super Duplex Stainless Steel Properties as an Austenite-Ferrite Composite AU - Fady M. Elsabbagh AU - Ahmed El-Sabbagh PY - 2015 LA - en ER -
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