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Hardening of Additive Manufactured 316L Stainless Steel by Using Bimodal Powder Containing Nanoscale Fraction
The particle size distribution significantly affects the material properties of the additively manufactured parts. In this work, the influence of bimodal powder containing nano- and micro-scale particles on microstructure and materials properties is studied. Moreover, to study the effect of the prot...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7794974/ https://www.ncbi.nlm.nih.gov/pubmed/33383901 http://dx.doi.org/10.3390/ma14010115 |
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author | Filimonov, Aleksandr M. Rogozin, Oleg A. Firsov, Denis G. Kuzminova, Yulia O. Sergeev, Semen N. Zhilyaev, Alexander P. Lerner, Marat I. Toropkov, Nikita E. Simonov, Alexey P. Binkov, Ivan I. Okulov, Ilya V. Akhatov, Iskander S. Evlashin, Stanislav A. |
author_facet | Filimonov, Aleksandr M. Rogozin, Oleg A. Firsov, Denis G. Kuzminova, Yulia O. Sergeev, Semen N. Zhilyaev, Alexander P. Lerner, Marat I. Toropkov, Nikita E. Simonov, Alexey P. Binkov, Ivan I. Okulov, Ilya V. Akhatov, Iskander S. Evlashin, Stanislav A. |
author_sort | Filimonov, Aleksandr M. |
collection | PubMed |
description | The particle size distribution significantly affects the material properties of the additively manufactured parts. In this work, the influence of bimodal powder containing nano- and micro-scale particles on microstructure and materials properties is studied. Moreover, to study the effect of the protective atmosphere, the test samples were additively manufactured from 316L stainless steel powder in argon and nitrogen. The samples fabricated from the bimodal powder demonstrate a finer subgrain structure, regardless of protective atmospheres and an increase in the Vickers microhardness, which is in accordance with the Hall-Petch relation. The porosity analysis revealed the deterioration in the quality of as-built parts due to the poor powder flowability. The surface roughness of fabricated samples was the same regardless of the powder feedstock materials used and protective atmospheres. The results suggest that the improvement of mechanical properties is achieved by adding a nano-dispersed fraction, which dramatically increases the total surface area, thereby contributing to the nitrogen absorption by the material. |
format | Online Article Text |
id | pubmed-7794974 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-77949742021-01-10 Hardening of Additive Manufactured 316L Stainless Steel by Using Bimodal Powder Containing Nanoscale Fraction Filimonov, Aleksandr M. Rogozin, Oleg A. Firsov, Denis G. Kuzminova, Yulia O. Sergeev, Semen N. Zhilyaev, Alexander P. Lerner, Marat I. Toropkov, Nikita E. Simonov, Alexey P. Binkov, Ivan I. Okulov, Ilya V. Akhatov, Iskander S. Evlashin, Stanislav A. Materials (Basel) Article The particle size distribution significantly affects the material properties of the additively manufactured parts. In this work, the influence of bimodal powder containing nano- and micro-scale particles on microstructure and materials properties is studied. Moreover, to study the effect of the protective atmosphere, the test samples were additively manufactured from 316L stainless steel powder in argon and nitrogen. The samples fabricated from the bimodal powder demonstrate a finer subgrain structure, regardless of protective atmospheres and an increase in the Vickers microhardness, which is in accordance with the Hall-Petch relation. The porosity analysis revealed the deterioration in the quality of as-built parts due to the poor powder flowability. The surface roughness of fabricated samples was the same regardless of the powder feedstock materials used and protective atmospheres. The results suggest that the improvement of mechanical properties is achieved by adding a nano-dispersed fraction, which dramatically increases the total surface area, thereby contributing to the nitrogen absorption by the material. MDPI 2020-12-29 /pmc/articles/PMC7794974/ /pubmed/33383901 http://dx.doi.org/10.3390/ma14010115 Text en © 2020 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 Filimonov, Aleksandr M. Rogozin, Oleg A. Firsov, Denis G. Kuzminova, Yulia O. Sergeev, Semen N. Zhilyaev, Alexander P. Lerner, Marat I. Toropkov, Nikita E. Simonov, Alexey P. Binkov, Ivan I. Okulov, Ilya V. Akhatov, Iskander S. Evlashin, Stanislav A. Hardening of Additive Manufactured 316L Stainless Steel by Using Bimodal Powder Containing Nanoscale Fraction |
title | Hardening of Additive Manufactured 316L Stainless Steel by Using Bimodal Powder Containing Nanoscale Fraction |
title_full | Hardening of Additive Manufactured 316L Stainless Steel by Using Bimodal Powder Containing Nanoscale Fraction |
title_fullStr | Hardening of Additive Manufactured 316L Stainless Steel by Using Bimodal Powder Containing Nanoscale Fraction |
title_full_unstemmed | Hardening of Additive Manufactured 316L Stainless Steel by Using Bimodal Powder Containing Nanoscale Fraction |
title_short | Hardening of Additive Manufactured 316L Stainless Steel by Using Bimodal Powder Containing Nanoscale Fraction |
title_sort | hardening of additive manufactured 316l stainless steel by using bimodal powder containing nanoscale fraction |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7794974/ https://www.ncbi.nlm.nih.gov/pubmed/33383901 http://dx.doi.org/10.3390/ma14010115 |
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