Heat transfer analysis of the forced air quenching with non-isothermal and non-uniform oxidation.

In this paper, the heat transfer characteristics of the forced air quenching with non-isothermal and non-uniform oxidation are investigated. By introducing the variations of interfacial temperature and oxygen partial pressure, a three-layered non-isothermal high-temperature oxidation kinetic model i...

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Autores principales:	Yue Zhang, Jian Yang, Ming-Xin Gao, Hua Sono
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e422b7cfb4cf406fbd636cfe4971aeb2
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spelling	oai:doaj.org-article:e422b7cfb4cf406fbd636cfe4971aeb22021-12-02T20:10:27ZHeat transfer analysis of the forced air quenching with non-isothermal and non-uniform oxidation.1932-620310.1371/journal.pone.0253240https://doaj.org/article/e422b7cfb4cf406fbd636cfe4971aeb22021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0253240https://doaj.org/toc/1932-6203In this paper, the heat transfer characteristics of the forced air quenching with non-isothermal and non-uniform oxidation are investigated. By introducing the variations of interfacial temperature and oxygen partial pressure, a three-layered non-isothermal high-temperature oxidation kinetic model is developed, in which a discrete-time modeling method is employed to solve the problem of integration of the transient terms, and a special interfacial grid treatment is used for considering the growth of each oxide layer and updating of the thermal properties. Moreover, a parameter identification method using the multi-objective genetic algorithm is proposed for the inverse solution of the oxidation parabolic parameters based on the measured scale thicknesses in oxidation experiment. A case study of the forced air quenching of a Q235 disk is presented to validate the availability of the developed formulas. Then the interfacial heat transfer characteristics are analyzed, while the numerical solutions with and without oxidation are both performed for in-depth comparison. Results indicate that the active quenching region is mainly centralized in the vicinity of stagnation region. The radial variation regularity of the temperature difference across the total oxide layer is mainly determined by the thermal conductivity and the scale thickness. The existence of the oxide scale actually produces a certain thermal resistance during the quenching process and the effects of the oxide scale increases with the radial coordinate due to the interfacial temperature distribution. The results obtained can provide theoretical derivation for precise control of the internal phase transformation during the forced air quenching process.Yue ZhangJian YangMing-Xin GaoHua SonoPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 6, p e0253240 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yue Zhang Jian Yang Ming-Xin Gao Hua Sono Heat transfer analysis of the forced air quenching with non-isothermal and non-uniform oxidation.
description	In this paper, the heat transfer characteristics of the forced air quenching with non-isothermal and non-uniform oxidation are investigated. By introducing the variations of interfacial temperature and oxygen partial pressure, a three-layered non-isothermal high-temperature oxidation kinetic model is developed, in which a discrete-time modeling method is employed to solve the problem of integration of the transient terms, and a special interfacial grid treatment is used for considering the growth of each oxide layer and updating of the thermal properties. Moreover, a parameter identification method using the multi-objective genetic algorithm is proposed for the inverse solution of the oxidation parabolic parameters based on the measured scale thicknesses in oxidation experiment. A case study of the forced air quenching of a Q235 disk is presented to validate the availability of the developed formulas. Then the interfacial heat transfer characteristics are analyzed, while the numerical solutions with and without oxidation are both performed for in-depth comparison. Results indicate that the active quenching region is mainly centralized in the vicinity of stagnation region. The radial variation regularity of the temperature difference across the total oxide layer is mainly determined by the thermal conductivity and the scale thickness. The existence of the oxide scale actually produces a certain thermal resistance during the quenching process and the effects of the oxide scale increases with the radial coordinate due to the interfacial temperature distribution. The results obtained can provide theoretical derivation for precise control of the internal phase transformation during the forced air quenching process.
format	article
author	Yue Zhang Jian Yang Ming-Xin Gao Hua Sono
author_facet	Yue Zhang Jian Yang Ming-Xin Gao Hua Sono
author_sort	Yue Zhang
title	Heat transfer analysis of the forced air quenching with non-isothermal and non-uniform oxidation.
title_short	Heat transfer analysis of the forced air quenching with non-isothermal and non-uniform oxidation.
title_full	Heat transfer analysis of the forced air quenching with non-isothermal and non-uniform oxidation.
title_fullStr	Heat transfer analysis of the forced air quenching with non-isothermal and non-uniform oxidation.
title_full_unstemmed	Heat transfer analysis of the forced air quenching with non-isothermal and non-uniform oxidation.
title_sort	heat transfer analysis of the forced air quenching with non-isothermal and non-uniform oxidation.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/e422b7cfb4cf406fbd636cfe4971aeb2
work_keys_str_mv	AT yuezhang heattransferanalysisoftheforcedairquenchingwithnonisothermalandnonuniformoxidation AT jianyang heattransferanalysisoftheforcedairquenchingwithnonisothermalandnonuniformoxidation AT mingxingao heattransferanalysisoftheforcedairquenchingwithnonisothermalandnonuniformoxidation AT huasono heattransferanalysisoftheforcedairquenchingwithnonisothermalandnonuniformoxidation
_version_	1718375032316493824

Heat transfer analysis of the forced air quenching with non-isothermal and non-uniform oxidation.

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