TY - JOUR N2 - In the high-alloy, ferritic - austenitic (duplex) stainless steels high tendency to cracking, mainly hot-is induced by micro segregation processes and change of crystallization mechanism in its final stage. The article is a continuation of the problems presented in earlier papers [1 - 4]. In the range of high temperature cracking appear one mechanism a decohesion - intergranular however, depending on the chemical composition of the steel, various structural factors decide of the occurrence of hot cracking. The low-carbon and low-alloy cast steel casting hot cracking cause are type II sulphide, in high carbon tool cast steel secondary cementite mesh and / or ledeburite segregated at the grain solidified grains boundaries, in the case of Hadfield steel phosphorus - carbide eutectic, which carrier is iron-manganese and low solubility of phosphorus in high manganese matrix. In duplex cast steel the additional factor increasing the risk of cracking it is very "rich" chemical composition and related with it processes of precipitation of many secondary phases. L1 - http://journals.pan.pl/Content/101945/PDF/afe-2016-0101.pdf L2 - http://journals.pan.pl/Content/101945 PY - 2016 IS - No 4 DO - 10.1515/afe-2016-0101 KW - duplex cast steel KW - Hot cracking KW - Solidification KW - Sigma Phase A1 - Stradomski, G. PB - The Katowice Branch of the Polish Academy of Sciences DA - 2016 T1 - The Cracking Mechanism of Ferritic-Austenitic Cast Steel UR - http://journals.pan.pl/dlibra/publication/edition/101945 T2 - Archives of Foundry Engineering ER -