20.500.12556/RUL-154110 Preliminary study of new low-temperature hard abrasion resistant Fe-P and Fe-P-X (X = C or/and B) casting alloys This article analyses the as-cast state of practically unknown Fe-P-based cast alloys with or without an addition of carbon and/or boron, cast into a grey cast iron mould. The melting intervals of the alloys were determined by DSC analysis, and the microstructure was characterized by optical and scanning electron microscopy with an EDXS detector. The hardness and microhardness of the alloys were also measured. Their hardness reached values between 52 and 65 HRC depending on chemical composition and microstructure, showing their high abrasion resistance. The high hardness is a consequence of the eutectic and primary intermetallic phases of Fe$_3$P, Fe$_3$C, Fe$_2$B or mixed type. By increasing the concentration of metalloids and combining them, the hardness and brittleness of the alloys were increased. The alloys with predominantly eutectic microstructures were the least brittle. Depending on the chemical composition, the solidus and liquidus temperatures ranged from 954 °C to 1220 °C and were lower than those of the well-known wear-resistant white cast irons. iron-phosphorus alloys low melting temperature as-cast state high hardness true false true Angleški jezik Ni določen Članek v reviji 2024-01-25 12:57:18 2024-01-25 12:57:19 2024-01-27 03:22:58 0000-00-00 00:00:00 2023 0 0 18 str. iss. 10, art. 3766 Vol. 16 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 669 1996-1944 10.3390/ma16103766 152477699 materials-16-03766.pdf materials-16-03766.pdf 1 07E0737EBD2EFC12B62B393915258BD8 ca82636495efb7d1dc1d60a433555df36f06d8d04413d8bf9dad5666c580462d 922753df-bb79-11ee-9ead-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=180291 https://www.mdpi.com/1996-1944/16/10/3766 0 1ed1a7bc-bb79-11ee-9ead-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=180290 Naravoslovnotehniška fakulteta 0 0 0