A new study on the growth behavior of austenite grains during heating processes

Abstract In this paper, the effects of the heating temperature and holding time on the austenite grain growth of SCM435 steel were studied and analyzed in terms of the average, macro-axis and minor-axis size of the grains. The results indicated that the classical Sellars model was highly consistent...

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Autores principales:	Dong Xu, Cheng Ji, Hongyang Zhao, Dongying Ju, Miaoyong Zhu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d74bdf94580d46caba4b9177852a2b0a
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spelling	oai:doaj.org-article:d74bdf94580d46caba4b9177852a2b0a2021-12-02T11:52:38ZA new study on the growth behavior of austenite grains during heating processes10.1038/s41598-017-04371-82045-2322https://doaj.org/article/d74bdf94580d46caba4b9177852a2b0a2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04371-8https://doaj.org/toc/2045-2322Abstract In this paper, the effects of the heating temperature and holding time on the austenite grain growth of SCM435 steel were studied and analyzed in terms of the average, macro-axis and minor-axis size of the grains. The results indicated that the classical Sellars model was highly consistent for describing the growth stage of the new austenite but poorly described the initial nucleation-growth stage and stability stage of the austenite. A new model that expresses the average austenite grain growth of SCM435 steel was developed, and the values calculated based on this model were highly consistent with the actual measured values. The standard deviation and expected grain-size expressions increased as the heating temperature and holding time increased. The macro-axis and minor-axis size of the grains were linearly correlated with the average size, and the ratio of the macro-axis to the minor-axis size remained generally constant during grain growth. Furthermore, this paper provides a new way of thinking about heredity in materials science from the perspective of mathematical characteristics.Dong XuCheng JiHongyang ZhaoDongying JuMiaoyong ZhuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Dong Xu Cheng Ji Hongyang Zhao Dongying Ju Miaoyong Zhu A new study on the growth behavior of austenite grains during heating processes
description	Abstract In this paper, the effects of the heating temperature and holding time on the austenite grain growth of SCM435 steel were studied and analyzed in terms of the average, macro-axis and minor-axis size of the grains. The results indicated that the classical Sellars model was highly consistent for describing the growth stage of the new austenite but poorly described the initial nucleation-growth stage and stability stage of the austenite. A new model that expresses the average austenite grain growth of SCM435 steel was developed, and the values calculated based on this model were highly consistent with the actual measured values. The standard deviation and expected grain-size expressions increased as the heating temperature and holding time increased. The macro-axis and minor-axis size of the grains were linearly correlated with the average size, and the ratio of the macro-axis to the minor-axis size remained generally constant during grain growth. Furthermore, this paper provides a new way of thinking about heredity in materials science from the perspective of mathematical characteristics.
format	article
author	Dong Xu Cheng Ji Hongyang Zhao Dongying Ju Miaoyong Zhu
author_facet	Dong Xu Cheng Ji Hongyang Zhao Dongying Ju Miaoyong Zhu
author_sort	Dong Xu
title	A new study on the growth behavior of austenite grains during heating processes
title_short	A new study on the growth behavior of austenite grains during heating processes
title_full	A new study on the growth behavior of austenite grains during heating processes
title_fullStr	A new study on the growth behavior of austenite grains during heating processes
title_full_unstemmed	A new study on the growth behavior of austenite grains during heating processes
title_sort	new study on the growth behavior of austenite grains during heating processes
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/d74bdf94580d46caba4b9177852a2b0a
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_version_	1718395013682954240

A new study on the growth behavior of austenite grains during heating processes

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