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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...
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/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. |
format | Online Article Text |
id | pubmed-7829819 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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