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Microstructure and Mechanical Properties of Pressure-Quenched SS304 Stainless Steel
Bulk SS304 polycrystalline materials with ultrafine microstructures were prepared via a high-pressure self-heating melting and quenching method. Analyses of phase composition, grain size and microstructure were performed using metallographic analysis, X-ray diffraction, Rietveld refinement and trans...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6356979/ https://www.ncbi.nlm.nih.gov/pubmed/30658475 http://dx.doi.org/10.3390/ma12020290 |
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author | Wang, Peng Zhang, Yang Yu, Dongli |
author_facet | Wang, Peng Zhang, Yang Yu, Dongli |
author_sort | Wang, Peng |
collection | PubMed |
description | Bulk SS304 polycrystalline materials with ultrafine microstructures were prepared via a high-pressure self-heating melting and quenching method. Analyses of phase composition, grain size and microstructure were performed using metallographic analysis, X-ray diffraction, Rietveld refinement and transmission electron microscope (TEM). The effects of pressure and cooling rate on the solidification of SS304 were analyzed. Mechanical property test results show that, compared with the as-received sample, the hardness and the yield strength of the pressure-quenched (PQ) samples were greatly increased, the ultimate tensile strength changed minimally, and the elongation rate became small, primarily due to the large density of dislocations in the sample. The high-pressure self-heating melting and quenching method is an exotic route to process a small piece of steel with moderate properties and ultrafine microstructure. |
format | Online Article Text |
id | pubmed-6356979 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-63569792019-02-04 Microstructure and Mechanical Properties of Pressure-Quenched SS304 Stainless Steel Wang, Peng Zhang, Yang Yu, Dongli Materials (Basel) Article Bulk SS304 polycrystalline materials with ultrafine microstructures were prepared via a high-pressure self-heating melting and quenching method. Analyses of phase composition, grain size and microstructure were performed using metallographic analysis, X-ray diffraction, Rietveld refinement and transmission electron microscope (TEM). The effects of pressure and cooling rate on the solidification of SS304 were analyzed. Mechanical property test results show that, compared with the as-received sample, the hardness and the yield strength of the pressure-quenched (PQ) samples were greatly increased, the ultimate tensile strength changed minimally, and the elongation rate became small, primarily due to the large density of dislocations in the sample. The high-pressure self-heating melting and quenching method is an exotic route to process a small piece of steel with moderate properties and ultrafine microstructure. MDPI 2019-01-17 /pmc/articles/PMC6356979/ /pubmed/30658475 http://dx.doi.org/10.3390/ma12020290 Text en © 2019 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 Wang, Peng Zhang, Yang Yu, Dongli Microstructure and Mechanical Properties of Pressure-Quenched SS304 Stainless Steel |
title | Microstructure and Mechanical Properties of Pressure-Quenched SS304 Stainless Steel |
title_full | Microstructure and Mechanical Properties of Pressure-Quenched SS304 Stainless Steel |
title_fullStr | Microstructure and Mechanical Properties of Pressure-Quenched SS304 Stainless Steel |
title_full_unstemmed | Microstructure and Mechanical Properties of Pressure-Quenched SS304 Stainless Steel |
title_short | Microstructure and Mechanical Properties of Pressure-Quenched SS304 Stainless Steel |
title_sort | microstructure and mechanical properties of pressure-quenched ss304 stainless steel |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6356979/ https://www.ncbi.nlm.nih.gov/pubmed/30658475 http://dx.doi.org/10.3390/ma12020290 |
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