TY - JOUR N2 - 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. The paper presents the results of examination of the kinetics of σ phase precipitation at a temperature of 800°C and at times ranging from 30 to 180 minutes. Changes in the morphology of precipitates of the σ phase were determined using the value of shape factor R. Resistance to erosion-corrosion wear of duplex cast steel was correlated with the kinetics of sigma phase precipitating. L1 - http://www.czasopisma.pan.pl/Content/87756/PDF/04_paper.pdf L2 - http://www.czasopisma.pan.pl/Content/87756 PY - 2014 IS - No 1 DO - 10.2478/afe-2014-0004 KW - Innovative Foundry Materials and Technologies KW - duplex cast steel KW - Sigma Phase KW - Shape Factor KW - Erosive-corrosive wear A1 - Brodziak-Hyska, A. A1 - Stradomski, Z. A1 - Kolan, C. PB - The Katowice Branch of the Polish Academy of Sciences DA - 2014 T1 - Kinetics of the σ Phase Precipitation in Respect of Erosion-corrosion Wear of Duplex Cast Steel UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/87756 T2 - Archives of Foundry Engineering ER -