Preliminary study of new low-temperature hard abrasion resistant Fe-P and Fe-P-X (X = C or/and B) casting alloys

Zorc, Matija (author), Nagode, Aleš (author), Burja, Jaka (author), Kosec, Borut (author), Bizjak, Milan (author), Zorc, Borut (author)

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.

• Language: English
• Keywords: iron-phosphorus alloys, low melting temperature, as-cast state, high hardness
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: NTF - Faculty of Natural Sciences and Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2023
• Number of pages: 18 str.
• Numbering: Vol. 16, iss. 10, art. 3766
• PID: 20.500.12556/RUL-154110
• UDC: 669
• ISSN on article: 1996-1944
• DOI: 10.3390/ma16103766
• COBISS.SI-ID: 152477699
• Publication date in RUL: 25.01.2024

Record is a part of a journal

• Title: Materials
• Shortened title: Materials
• Publisher: MDPI
• ISSN: 1996-1944
• COBISS.SI-ID: 33588485

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: P2-0205
• Name: Sinteza in karakterizacija materialov

• Funder: ARRS - Slovenian Research Agency
• Project number: P1-0195
• Name: Geookolje in geomateriali