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A Newly Developed Easily Sinterable Low-Alloy Steel Powder

The work presents a possibility of fabrication of inexpensive iron-based powders intended to form the matrix in sintered diamond-impregnated tool components. In this study, a finely dispersed, pre-alloyed steel powder, containing over 95 wt.% Fe, has been designed and fabricated by means of a propri...

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Detalles Bibliográficos
Autores principales: Tyrala, Dorota, Konstanty, Janusz, Kalemba-Rec, Izabela
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7829819/
https://www.ncbi.nlm.nih.gov/pubmed/33467527
http://dx.doi.org/10.3390/ma14020406
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author Tyrala, Dorota
Konstanty, Janusz
Kalemba-Rec, Izabela
author_facet Tyrala, Dorota
Konstanty, Janusz
Kalemba-Rec, Izabela
author_sort Tyrala, Dorota
collection PubMed
description The work presents a possibility of fabrication of inexpensive iron-based powders intended to form the matrix in sintered diamond-impregnated tool components. In this study, a finely dispersed, pre-alloyed steel powder, containing over 95 wt.% Fe, has been designed and fabricated by means of a proprietary process developed at AGH-University of Science & Technology. It has been shown that the experimental powder can be consolidated to a closed porosity condition (>95% theoretical density) by pressure-less sintering at a temperature below 900 °C. The as-consolidated material is characterized by an excellent combination of hardness (~250 HV) and mechanical strength (>1200 MPa in 3-point bending) that meets the diamond tooling requirements. Its properties can be modified to some extent by varying the cold forming pressure and sintering temperature.
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spelling pubmed-78298192021-01-26 A Newly Developed Easily Sinterable Low-Alloy Steel Powder Tyrala, Dorota Konstanty, Janusz Kalemba-Rec, Izabela Materials (Basel) Article The work presents a possibility of fabrication of inexpensive iron-based powders intended to form the matrix in sintered diamond-impregnated tool components. In this study, a finely dispersed, pre-alloyed steel powder, containing over 95 wt.% Fe, has been designed and fabricated by means of a proprietary process developed at AGH-University of Science & Technology. It has been shown that the experimental powder can be consolidated to a closed porosity condition (>95% theoretical density) by pressure-less sintering at a temperature below 900 °C. The as-consolidated material is characterized by an excellent combination of hardness (~250 HV) and mechanical strength (>1200 MPa in 3-point bending) that meets the diamond tooling requirements. Its properties can be modified to some extent by varying the cold forming pressure and sintering temperature. MDPI 2021-01-15 /pmc/articles/PMC7829819/ /pubmed/33467527 http://dx.doi.org/10.3390/ma14020406 Text en © 2021 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tyrala, Dorota
Konstanty, Janusz
Kalemba-Rec, Izabela
A Newly Developed Easily Sinterable Low-Alloy Steel Powder
title A Newly Developed Easily Sinterable Low-Alloy Steel Powder
title_full A Newly Developed Easily Sinterable Low-Alloy Steel Powder
title_fullStr A Newly Developed Easily Sinterable Low-Alloy Steel Powder
title_full_unstemmed A Newly Developed Easily Sinterable Low-Alloy Steel Powder
title_short A Newly Developed Easily Sinterable Low-Alloy Steel Powder
title_sort newly developed easily sinterable low-alloy steel powder
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7829819/
https://www.ncbi.nlm.nih.gov/pubmed/33467527
http://dx.doi.org/10.3390/ma14020406
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