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Influence of Austempering of As-Cast Medium Carbon High-Silicon Steel on Wear Resistance
The aim of this study was to evaluate the effect of austempering compared to quenching and low-temperature tempering on wear resistance of an as-cast medium carbon high-silicon steel intended for rock breaking. Austempering was done by isothermal holding at 270, 300 and 350 °C in molten salt baths,...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8706462/ https://www.ncbi.nlm.nih.gov/pubmed/34947114 http://dx.doi.org/10.3390/ma14247518 |
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author | Sedlaček, Marko Klančnik, Grega Nagode, Aleš Burja, Jaka |
author_facet | Sedlaček, Marko Klančnik, Grega Nagode, Aleš Burja, Jaka |
author_sort | Sedlaček, Marko |
collection | PubMed |
description | The aim of this study was to evaluate the effect of austempering compared to quenching and low-temperature tempering on wear resistance of an as-cast medium carbon high-silicon steel intended for rock breaking. Austempering was done by isothermal holding at 270, 300 and 350 °C in molten salt baths, while quenching was done in water. The austempering treatments resulted in microstructural combinations of bainite and martensite. The isothermal holding at 270 °C resulted in bainite and self-tempered martensite, while isothermal holdings at 300 and 350 °C resulted in bainite and untempered martensite. The two quench and temper treatments resulted in tempered martensite. In general austempering resulted in lower hardness values when compared to quenching and tempering but higher impact toughness. The wear resistance was best for quenching and low temperature tempering, followed by austempering at 270 °C, but at slightly lower hardness and 25% higher impact toughness. The other two austempering treatments resulted in worse wear resistance. |
format | Online Article Text |
id | pubmed-8706462 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-87064622021-12-25 Influence of Austempering of As-Cast Medium Carbon High-Silicon Steel on Wear Resistance Sedlaček, Marko Klančnik, Grega Nagode, Aleš Burja, Jaka Materials (Basel) Article The aim of this study was to evaluate the effect of austempering compared to quenching and low-temperature tempering on wear resistance of an as-cast medium carbon high-silicon steel intended for rock breaking. Austempering was done by isothermal holding at 270, 300 and 350 °C in molten salt baths, while quenching was done in water. The austempering treatments resulted in microstructural combinations of bainite and martensite. The isothermal holding at 270 °C resulted in bainite and self-tempered martensite, while isothermal holdings at 300 and 350 °C resulted in bainite and untempered martensite. The two quench and temper treatments resulted in tempered martensite. In general austempering resulted in lower hardness values when compared to quenching and tempering but higher impact toughness. The wear resistance was best for quenching and low temperature tempering, followed by austempering at 270 °C, but at slightly lower hardness and 25% higher impact toughness. The other two austempering treatments resulted in worse wear resistance. MDPI 2021-12-08 /pmc/articles/PMC8706462/ /pubmed/34947114 http://dx.doi.org/10.3390/ma14247518 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Sedlaček, Marko Klančnik, Grega Nagode, Aleš Burja, Jaka Influence of Austempering of As-Cast Medium Carbon High-Silicon Steel on Wear Resistance |
title | Influence of Austempering of As-Cast Medium Carbon High-Silicon Steel on Wear Resistance |
title_full | Influence of Austempering of As-Cast Medium Carbon High-Silicon Steel on Wear Resistance |
title_fullStr | Influence of Austempering of As-Cast Medium Carbon High-Silicon Steel on Wear Resistance |
title_full_unstemmed | Influence of Austempering of As-Cast Medium Carbon High-Silicon Steel on Wear Resistance |
title_short | Influence of Austempering of As-Cast Medium Carbon High-Silicon Steel on Wear Resistance |
title_sort | influence of austempering of as-cast medium carbon high-silicon steel on wear resistance |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8706462/ https://www.ncbi.nlm.nih.gov/pubmed/34947114 http://dx.doi.org/10.3390/ma14247518 |
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