TY - JOUR N2 - High-chromium cast irons are used as abrasion resistant materials. Their wear resistance depends on quantity of carbides and the matrix supporting these carbides. The paper presents the results of cast irons of chemical composition (in wt. %) 19–22 Cr and 2–4.5 C alloyed by 1.7 Mo + 5 Ni + 2 Mn to improve their toughness, which were tested in working conditions of ferroalloys crushing. Tests showed that these as-cast chromium cast irons with mostly austenitic matrix achieved the hardness of 38-45 HRC, but their relative abrasion resistance Ψ ranged from 1.3 to 4.6, was higher comparing to the tool made from the X210Cr12 steel heat treated on hardness 61 HRC. The transformation of austenite into martensite occurs not only at the worn strained areas (on a surface of scratch) but also in their neighbourhood. Due to the work hardening of relatively large volumes of transformed austenite the cast iron possesses high abrasion resistance also on the surfaces where low pressures are acting. The tough abrasion-resistant cast iron well proved for production of dynamic and wear stressed castings e.g., crusher hammers, cutting tools for ceramic etc. L1 - http://www.journals.pan.pl/Content/89193/PDF/afe-2016-0028.pdf L2 - http://www.journals.pan.pl/Content/89193 PY - 2016 IS - No 2 DO - 10.1515/afe-2016-0028 KW - Wear resistant alloys KW - Mechanical Properties KW - High-chromium cast iron KW - abrasion resistance A1 - Pokusová, M. A1 - Brúsilová, A. A1 - Šooš, Ľ. A1 - I. Berta PB - The Katowice Branch of the Polish Academy of Sciences DA - 2016 T1 - Abrasion Wear Behavior of High-chromium Cast Iron UR - http://www.journals.pan.pl/dlibra/publication/edition/89193 T2 - Archives of Foundry Engineering ER -