Effect of Deformation Structure of AISI 316L in Low-Temperature Vacuum Carburizing

The effect of plastic deformation applied to AISI 316L in low-temperature vacuum carburizing without surface activation was investigated. To create a difference in the deformation states of each specimen, solution and stress-relieving heat treatment were performed using plastically deformed AISI 316...

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Autores principales:	Hyunseok Cheon, Kyu-Sik Kim, Sunkwang Kim, Sung-Bo Heo, Jae-Hun Lim, Jun-Ho Kim, Seog-Young Yoon
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	plastic deformation deformed structure low-temperature vacuum carburizing expanded austenite natural oxide layer Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/f42c70bcfcf1442c9b312b9c485b49ad
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spelling	oai:doaj.org-article:f42c70bcfcf1442c9b312b9c485b49ad2021-11-25T18:21:45ZEffect of Deformation Structure of AISI 316L in Low-Temperature Vacuum Carburizing10.3390/met111117622075-4701https://doaj.org/article/f42c70bcfcf1442c9b312b9c485b49ad2021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1762https://doaj.org/toc/2075-4701The effect of plastic deformation applied to AISI 316L in low-temperature vacuum carburizing without surface activation was investigated. To create a difference in the deformation states of each specimen, solution and stress-relieving heat treatment were performed using plastically deformed AISI 316L, and the deformation structure and the carburized layer were observed with EBSD and OM. The change in lattice parameter was confirmed with XRD, and the natural oxide layers were analyzed through TEM and XPS. In this study, the carburized layer on the deformed AISI 316L was the thinnest and the dissolved carbon content of the layer was the lowest. The thickness and composition of the natural oxide layer on the surface were changed due to the deformed structure. The natural oxide layer on the deformed AISI 316L was the thickest, and the layer was formed with a bi-layer structure consisting of an upper Cr-rich layer and a lower Fe-rich layer. The thick and Cr-rich oxide layer was difficult to decompose due to the requirement for lower oxygen partial pressure. In conclusion, the oxide layer is the most influential factor, and its thickness and composition may determine carburizing efficiency in low-temperature vacuum carburizing without surface activation.Hyunseok CheonKyu-Sik KimSunkwang KimSung-Bo HeoJae-Hun LimJun-Ho KimSeog-Young YoonMDPI AGarticleplastic deformationdeformed structurelow-temperature vacuum carburizingexpanded austenitenatural oxide layerMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1762, p 1762 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	plastic deformation deformed structure low-temperature vacuum carburizing expanded austenite natural oxide layer Mining engineering. Metallurgy TN1-997
spellingShingle	plastic deformation deformed structure low-temperature vacuum carburizing expanded austenite natural oxide layer Mining engineering. Metallurgy TN1-997 Hyunseok Cheon Kyu-Sik Kim Sunkwang Kim Sung-Bo Heo Jae-Hun Lim Jun-Ho Kim Seog-Young Yoon Effect of Deformation Structure of AISI 316L in Low-Temperature Vacuum Carburizing
description	The effect of plastic deformation applied to AISI 316L in low-temperature vacuum carburizing without surface activation was investigated. To create a difference in the deformation states of each specimen, solution and stress-relieving heat treatment were performed using plastically deformed AISI 316L, and the deformation structure and the carburized layer were observed with EBSD and OM. The change in lattice parameter was confirmed with XRD, and the natural oxide layers were analyzed through TEM and XPS. In this study, the carburized layer on the deformed AISI 316L was the thinnest and the dissolved carbon content of the layer was the lowest. The thickness and composition of the natural oxide layer on the surface were changed due to the deformed structure. The natural oxide layer on the deformed AISI 316L was the thickest, and the layer was formed with a bi-layer structure consisting of an upper Cr-rich layer and a lower Fe-rich layer. The thick and Cr-rich oxide layer was difficult to decompose due to the requirement for lower oxygen partial pressure. In conclusion, the oxide layer is the most influential factor, and its thickness and composition may determine carburizing efficiency in low-temperature vacuum carburizing without surface activation.
format	article
author	Hyunseok Cheon Kyu-Sik Kim Sunkwang Kim Sung-Bo Heo Jae-Hun Lim Jun-Ho Kim Seog-Young Yoon
author_facet	Hyunseok Cheon Kyu-Sik Kim Sunkwang Kim Sung-Bo Heo Jae-Hun Lim Jun-Ho Kim Seog-Young Yoon
author_sort	Hyunseok Cheon
title	Effect of Deformation Structure of AISI 316L in Low-Temperature Vacuum Carburizing
title_short	Effect of Deformation Structure of AISI 316L in Low-Temperature Vacuum Carburizing
title_full	Effect of Deformation Structure of AISI 316L in Low-Temperature Vacuum Carburizing
title_fullStr	Effect of Deformation Structure of AISI 316L in Low-Temperature Vacuum Carburizing
title_full_unstemmed	Effect of Deformation Structure of AISI 316L in Low-Temperature Vacuum Carburizing
title_sort	effect of deformation structure of aisi 316l in low-temperature vacuum carburizing
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f42c70bcfcf1442c9b312b9c485b49ad
work_keys_str_mv	AT hyunseokcheon effectofdeformationstructureofaisi316linlowtemperaturevacuumcarburizing AT kyusikkim effectofdeformationstructureofaisi316linlowtemperaturevacuumcarburizing AT sunkwangkim effectofdeformationstructureofaisi316linlowtemperaturevacuumcarburizing AT sungboheo effectofdeformationstructureofaisi316linlowtemperaturevacuumcarburizing AT jaehunlim effectofdeformationstructureofaisi316linlowtemperaturevacuumcarburizing AT junhokim effectofdeformationstructureofaisi316linlowtemperaturevacuumcarburizing AT seogyoungyoon effectofdeformationstructureofaisi316linlowtemperaturevacuumcarburizing
_version_	1718411295139561472

Effect of Deformation Structure of AISI 316L in Low-Temperature Vacuum Carburizing

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