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Effects of Stress on Phase Transformations in Grinding by FE Modeling and Experimental Approaches

In the grinding process, the materials within the surface layer may undergo phase transformation and finally form a strengthened layer. It is of great significance to model the phase transformation and predict the characteristics of the strengthened layer accurately. The phase transformations occur...

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Detalles Bibliográficos
Autores principales: Xiu, Shichao, Deng, Yansheng, Kong, Xiangna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6678647/
https://www.ncbi.nlm.nih.gov/pubmed/31336596
http://dx.doi.org/10.3390/ma12142327
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author Xiu, Shichao
Deng, Yansheng
Kong, Xiangna
author_facet Xiu, Shichao
Deng, Yansheng
Kong, Xiangna
author_sort Xiu, Shichao
collection PubMed
description In the grinding process, the materials within the surface layer may undergo phase transformation and finally form a strengthened layer. It is of great significance to model the phase transformation and predict the characteristics of the strengthened layer accurately. The phase transformations occur under the varying temperature and high stress–strain in grinding, so the effects of stress on the transformations are inescapable. This paper focuses on revealing the effects of stress on phase transformations in grinding. For this purpose, a thermal–mechanical–metallurgical direct coupling finite element (FE) model of grinding was established in Abaqus. The coupling interactions such as the latent heat, the volume change strain caused by phase transformation, and the stress-induced phase transformation were considered in the modeling procedure. Grinding experiments were carried out and proved the model could accurately predict the microstructure distribution and thickness of the strengthened layer. Further, the evolution of the phase transformation was discussed, and the effects of stress on the transformations were revealed.
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spelling pubmed-66786472019-08-19 Effects of Stress on Phase Transformations in Grinding by FE Modeling and Experimental Approaches Xiu, Shichao Deng, Yansheng Kong, Xiangna Materials (Basel) Article In the grinding process, the materials within the surface layer may undergo phase transformation and finally form a strengthened layer. It is of great significance to model the phase transformation and predict the characteristics of the strengthened layer accurately. The phase transformations occur under the varying temperature and high stress–strain in grinding, so the effects of stress on the transformations are inescapable. This paper focuses on revealing the effects of stress on phase transformations in grinding. For this purpose, a thermal–mechanical–metallurgical direct coupling finite element (FE) model of grinding was established in Abaqus. The coupling interactions such as the latent heat, the volume change strain caused by phase transformation, and the stress-induced phase transformation were considered in the modeling procedure. Grinding experiments were carried out and proved the model could accurately predict the microstructure distribution and thickness of the strengthened layer. Further, the evolution of the phase transformation was discussed, and the effects of stress on the transformations were revealed. MDPI 2019-07-22 /pmc/articles/PMC6678647/ /pubmed/31336596 http://dx.doi.org/10.3390/ma12142327 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
Xiu, Shichao
Deng, Yansheng
Kong, Xiangna
Effects of Stress on Phase Transformations in Grinding by FE Modeling and Experimental Approaches
title Effects of Stress on Phase Transformations in Grinding by FE Modeling and Experimental Approaches
title_full Effects of Stress on Phase Transformations in Grinding by FE Modeling and Experimental Approaches
title_fullStr Effects of Stress on Phase Transformations in Grinding by FE Modeling and Experimental Approaches
title_full_unstemmed Effects of Stress on Phase Transformations in Grinding by FE Modeling and Experimental Approaches
title_short Effects of Stress on Phase Transformations in Grinding by FE Modeling and Experimental Approaches
title_sort effects of stress on phase transformations in grinding by fe modeling and experimental approaches
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6678647/
https://www.ncbi.nlm.nih.gov/pubmed/31336596
http://dx.doi.org/10.3390/ma12142327
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