Influence of Cryogenic Treatment on Wear Resistance and Microstructure of AISI A8 Tool Steel

The effects of deep cryogenic treatment (DCT) on the wear behavior of different tool steels have been widely reported in the scientific literature with uneven results. Some tool steels show a significant improvement in their wear resistance when they have been cryogenically treated while others exhi...

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Autores: Jimbert Lacha, Pedro José, Iturrondobeitia Ellacuria, Maider, Ibarretxe Uriguen, Julen, Fernández Martínez, Roberto
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/32190
Acceso en línea:http://hdl.handle.net/10810/32190
Access Level:acceso abierto
Palabra clave:cryogenic treatment
AISI A8
wear
carbide distribution
internal stress
mechanical-properties
residual-stress
optimization
temperature
friction
behavior
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spelling Influence of Cryogenic Treatment on Wear Resistance and Microstructure of AISI A8 Tool SteelJimbert Lacha, Pedro JoséIturrondobeitia Ellacuria, MaiderIbarretxe Uriguen, JulenFernández Martínez, Robertocryogenic treatmentAISI A8wearcarbide distributioninternal stressmechanical-propertiesresidual-stressoptimizationtemperaturefrictionbehaviorThe effects of deep cryogenic treatment (DCT) on the wear behavior of different tool steels have been widely reported in the scientific literature with uneven results. Some tool steels show a significant improvement in their wear resistance when they have been cryogenically treated while others exhibit no relevant amelioration or even a reduction in their wear resistance. In this study, the influence of DCT was investigated for a grade that has been barely studied in the scientific literature, the AISI A8 air-hardening medium-alloy cold work tool steel. Several aspects were analyzed in the present work: the wear resistance of the alloy, the internal residual stress, and finally the secondary carbide precipitation in terms of lengths and occupied area and its distribution into the microstructure. The results revealed a reduction in the wear rate of about 14% when the AISI A8 was cryogenically treated before tempering. The number of carbides that precipitated into the microstructure was 6% higher for the cryogenically treated samples, increasing from 0.68% to 0.73% of the total area they covered. Furthermore, the distribution of the carbides into the microstructure was more homogenous for the cryogenically treated samples.This research was funded by the Department of Industry, Innovation, Trade, and Tourism of the Basque Country Government through the S-PE12UN080 SAIOTEK project.MDPI201920192018info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/32190reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoIngléshttps://www.mdpi.com/2075-4701/8/12/1038info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/es/This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).Atribución 3.0 Españaoai:addi.ehu.eus:10810/321902026-06-18T09:23:17Z
dc.title.none.fl_str_mv Influence of Cryogenic Treatment on Wear Resistance and Microstructure of AISI A8 Tool Steel
title Influence of Cryogenic Treatment on Wear Resistance and Microstructure of AISI A8 Tool Steel
spellingShingle Influence of Cryogenic Treatment on Wear Resistance and Microstructure of AISI A8 Tool Steel
Jimbert Lacha, Pedro José
cryogenic treatment
AISI A8
wear
carbide distribution
internal stress
mechanical-properties
residual-stress
optimization
temperature
friction
behavior
title_short Influence of Cryogenic Treatment on Wear Resistance and Microstructure of AISI A8 Tool Steel
title_full Influence of Cryogenic Treatment on Wear Resistance and Microstructure of AISI A8 Tool Steel
title_fullStr Influence of Cryogenic Treatment on Wear Resistance and Microstructure of AISI A8 Tool Steel
title_full_unstemmed Influence of Cryogenic Treatment on Wear Resistance and Microstructure of AISI A8 Tool Steel
title_sort Influence of Cryogenic Treatment on Wear Resistance and Microstructure of AISI A8 Tool Steel
dc.creator.none.fl_str_mv Jimbert Lacha, Pedro José
Iturrondobeitia Ellacuria, Maider
Ibarretxe Uriguen, Julen
Fernández Martínez, Roberto
author Jimbert Lacha, Pedro José
author_facet Jimbert Lacha, Pedro José
Iturrondobeitia Ellacuria, Maider
Ibarretxe Uriguen, Julen
Fernández Martínez, Roberto
author_role author
author2 Iturrondobeitia Ellacuria, Maider
Ibarretxe Uriguen, Julen
Fernández Martínez, Roberto
author2_role author
author
author
dc.subject.none.fl_str_mv cryogenic treatment
AISI A8
wear
carbide distribution
internal stress
mechanical-properties
residual-stress
optimization
temperature
friction
behavior
topic cryogenic treatment
AISI A8
wear
carbide distribution
internal stress
mechanical-properties
residual-stress
optimization
temperature
friction
behavior
description The effects of deep cryogenic treatment (DCT) on the wear behavior of different tool steels have been widely reported in the scientific literature with uneven results. Some tool steels show a significant improvement in their wear resistance when they have been cryogenically treated while others exhibit no relevant amelioration or even a reduction in their wear resistance. In this study, the influence of DCT was investigated for a grade that has been barely studied in the scientific literature, the AISI A8 air-hardening medium-alloy cold work tool steel. Several aspects were analyzed in the present work: the wear resistance of the alloy, the internal residual stress, and finally the secondary carbide precipitation in terms of lengths and occupied area and its distribution into the microstructure. The results revealed a reduction in the wear rate of about 14% when the AISI A8 was cryogenically treated before tempering. The number of carbides that precipitated into the microstructure was 6% higher for the cryogenically treated samples, increasing from 0.68% to 0.73% of the total area they covered. Furthermore, the distribution of the carbides into the microstructure was more homogenous for the cryogenically treated samples.
publishDate 2018
dc.date.none.fl_str_mv 2018
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/32190
url http://hdl.handle.net/10810/32190
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://www.mdpi.com/2075-4701/8/12/1038
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/3.0/es/
Atribución 3.0 España
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/3.0/es/
Atribución 3.0 España
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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