@ARTICLE{Stradomski_Z._Optimization_2012,
 author={Stradomski, Z. and Brodziak-Hyska, A. and Kolan, C.},
 number={No 2},
 journal={Archives of Foundry Engineering},
 howpublished={online},
 year={2012},
 publisher={The Katowice Branch of the Polish Academy of Sciences},
 abstract={The paper presents the results of examination concerning optimization of the σ phase precipitates with respect to the functional properties of ferritic-austenitic cast steel. The examined material comprised two grades of corrosion-resistant cast steel, namely GX2CrNiMoN25-6-3 and GX2CrNiMoCuN25-6-3-3, used for example in elements of systems of wet flue gas desulphurisation in power industry. The operating conditions in media heated up to 70°C and containing Cl- and SO4 ions and solid particles produce high erosive and corrosive wear. The work proposes an application of the σ phase as a component of precipitation strengthening mechanism in order to increase the functional properties of the material. Morphology and quantities of σ phase precipitates were determined, as well as its influence on the erosion and corrosion wear resistance. It was shown that annealing at 800°C or 900°C significantly improves tribological properties as compared with the supersaturated state, and the best erosion and corrosion wear resistance achieved due to the ferrite decomposition δ → γ’ + σ was exhibited in the case of annealing at the temperature of 800°C for 3 hours.},
 type={Artykuły / Articles},
 title={Optimization of Sigma Phase Precipitates with Respect to the Functional Properties of Duplex Cast Steel},
 URL={http://www.czasopisma.pan.pl/Content/86440/PDF/15_paper.pdf},
 doi={10.2478/v10266-012-0040-y},
 keywords={Innovative Foundry Materials and Technologies, duplex cast steel, Sigma Phase, Heat Treatment, Shape Factor},
}