Effects of trace erbium addition on microstructure and mechanical properties of Ti6Al4V-xEr alloys

In order to discern the effect of rare earth element Er addition on grain refinement of the most widely used titanium alloy Ti6Al4V, new erbium modified Ti6Al4V alloys with compositions of Ti6Al4V-xEr (x = 0, 0.2, 0.4, 0.6 wt %) were developed and investigated for their microstructural characteristi...

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Detalles Bibliográficos
Autores: Wu, Yakun, Guo, Yanhua, Xu, Guanglong, Chang, Hui, Cui, Yuwen
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/202073
Acceso en línea:http://hdl.handle.net/10261/202073
Access Level:acceso abierto
Palabra clave:Ti6Al4V alloys
Erbium modified
Microstructure
Mechanical properties
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spelling Effects of trace erbium addition on microstructure and mechanical properties of Ti6Al4V-xEr alloysWu, YakunGuo, YanhuaXu, GuanglongChang, HuiCui, YuwenTi6Al4V alloysErbium modifiedMicrostructureMechanical propertiesIn order to discern the effect of rare earth element Er addition on grain refinement of the most widely used titanium alloy Ti6Al4V, new erbium modified Ti6Al4V alloys with compositions of Ti6Al4V-xEr (x = 0, 0.2, 0.4, 0.6 wt %) were developed and investigated for their microstructural characteristics and mechanical properties in comparison with their unmodified baseline alloy. Microstructural examinations revealed that, by adding Er, (1) the microstructure primarily retained a two-phase structure consisting of α and β, (2) remarkable grain refining occurred, and (3) some Er2O3 and Al2Er disperses were formed largely around the β phase and near the grain boundaries. Mechanical property measurements evidenced an overall enhancement under tension and hardness tests. An increase in both strength and plasticity with increasing Er content was obtained but followed by a drop, while a gradual monotonous improvement in hardness was achieved. The Ti6Al4V-0.2Er alloy exhibits optimal mechanical properties.This research was funded by the Defense Industrial Technology Development Program of China [No. JCKY2018414C020]. Y.C. acknowledges the support from the Natural Science Funds of China [Grant No. 51571113], G.X. was funded by the Natural Science Funds of China [Grant No. 51701094] and the Natural Science Funds of Jiangsu Province [Grant No. BK20171014]. Y.G. would like to thank the support from the National Natural Science Foundation of China (No. 11647162) and Priority Academic Program Development of Jiangsu Higher Education Institution (PAPD).Peer reviewedMultidisciplinary Digital Publishing InstituteNational Key Research and Development Program (China)National Natural Science Foundation of ChinaNatural Science Foundation of Jiangsu ProvinceConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/202073reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.3390/met9060628Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2020732026-05-22T06:33:51Z
dc.title.none.fl_str_mv Effects of trace erbium addition on microstructure and mechanical properties of Ti6Al4V-xEr alloys
title Effects of trace erbium addition on microstructure and mechanical properties of Ti6Al4V-xEr alloys
spellingShingle Effects of trace erbium addition on microstructure and mechanical properties of Ti6Al4V-xEr alloys
Wu, Yakun
Ti6Al4V alloys
Erbium modified
Microstructure
Mechanical properties
title_short Effects of trace erbium addition on microstructure and mechanical properties of Ti6Al4V-xEr alloys
title_full Effects of trace erbium addition on microstructure and mechanical properties of Ti6Al4V-xEr alloys
title_fullStr Effects of trace erbium addition on microstructure and mechanical properties of Ti6Al4V-xEr alloys
title_full_unstemmed Effects of trace erbium addition on microstructure and mechanical properties of Ti6Al4V-xEr alloys
title_sort Effects of trace erbium addition on microstructure and mechanical properties of Ti6Al4V-xEr alloys
dc.creator.none.fl_str_mv Wu, Yakun
Guo, Yanhua
Xu, Guanglong
Chang, Hui
Cui, Yuwen
author Wu, Yakun
author_facet Wu, Yakun
Guo, Yanhua
Xu, Guanglong
Chang, Hui
Cui, Yuwen
author_role author
author2 Guo, Yanhua
Xu, Guanglong
Chang, Hui
Cui, Yuwen
author2_role author
author
author
author
dc.contributor.none.fl_str_mv National Key Research and Development Program (China)
National Natural Science Foundation of China
Natural Science Foundation of Jiangsu Province
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Ti6Al4V alloys
Erbium modified
Microstructure
Mechanical properties
topic Ti6Al4V alloys
Erbium modified
Microstructure
Mechanical properties
description In order to discern the effect of rare earth element Er addition on grain refinement of the most widely used titanium alloy Ti6Al4V, new erbium modified Ti6Al4V alloys with compositions of Ti6Al4V-xEr (x = 0, 0.2, 0.4, 0.6 wt %) were developed and investigated for their microstructural characteristics and mechanical properties in comparison with their unmodified baseline alloy. Microstructural examinations revealed that, by adding Er, (1) the microstructure primarily retained a two-phase structure consisting of α and β, (2) remarkable grain refining occurred, and (3) some Er2O3 and Al2Er disperses were formed largely around the β phase and near the grain boundaries. Mechanical property measurements evidenced an overall enhancement under tension and hardness tests. An increase in both strength and plasticity with increasing Er content was obtained but followed by a drop, while a gradual monotonous improvement in hardness was achieved. The Ti6Al4V-0.2Er alloy exhibits optimal mechanical properties.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/202073
url http://hdl.handle.net/10261/202073
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.3390/met9060628
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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