Mechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sintering

Ti-6Al-4V alloy exhibits a good combination of excellent properties, such as high specific strength, high fatigue strength, good ductility and weldability. However, Ti-6Al-4V alloy shows low stiffness and poor wear resistance. To further increase the strength properties and improve the stiffness and...

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Autores principales:	Hiroshi IZUI, Tsubasa SHINOHARA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2017
Materias:	titanium matrix composites ti-6al-4v alloy tib spark plasma sintering tib volume fraction tensile properties fatigue strength room-temperature creep behavior Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/2faa03db6e084ae988e57c48dbaa56a6
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spelling	oai:doaj.org-article:2faa03db6e084ae988e57c48dbaa56a62021-11-26T07:12:45ZMechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sintering2187-974510.1299/mej.17-00267https://doaj.org/article/2faa03db6e084ae988e57c48dbaa56a62017-10-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/4/6/4_17-00267/_pdf/-char/enhttps://doaj.org/toc/2187-9745Ti-6Al-4V alloy exhibits a good combination of excellent properties, such as high specific strength, high fatigue strength, good ductility and weldability. However, Ti-6Al-4V alloy shows low stiffness and poor wear resistance. To further increase the strength properties and improve the stiffness and wear resistance, TiB reinforced Ti-6Al-4V alloy matrix (TiB/Ti-6Al-4V) composites were fabricated by a spark plasma sintering (SPS) process. The TiB/Ti-6Al-4V alloy composites with 4.2 vol.% TiB, which were fabricated at a sintering temperature of 900 °C and for a holding time of 30 min, had the highest tensile strength of 1174 MPa. The Young’s modulus and Vickers microhardness of the composites increased with increasing TiB volume fraction, and the composite with 16.7 vol.% TiB exhibited values of 159 GPa and 517 HV, respectively. The tensile strength of the composite with 4.2 vol.% TiB at 400 °C was higher than that of the mild annealed Ti-6Al-4V alloy. The fatigue limits (over 107 cycles) at room temperature and 600 °C of the composites with 4.2 vol.% TiB were 350 MPa and 200 MPa, respectively. The creep strains at room temperature of the composites with 1.4 and 4.2 vol.% TiB did not increase with increasing creep time.Hiroshi IZUITsubasa SHINOHARAThe Japan Society of Mechanical Engineersarticletitanium matrix compositesti-6al-4v alloytibspark plasma sinteringtib volume fractiontensile propertiesfatigue strengthroom-temperature creep behaviorMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 4, Iss 6, Pp 17-00267-17-00267 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	titanium matrix composites ti-6al-4v alloy tib spark plasma sintering tib volume fraction tensile properties fatigue strength room-temperature creep behavior Mechanical engineering and machinery TJ1-1570
spellingShingle	titanium matrix composites ti-6al-4v alloy tib spark plasma sintering tib volume fraction tensile properties fatigue strength room-temperature creep behavior Mechanical engineering and machinery TJ1-1570 Hiroshi IZUI Tsubasa SHINOHARA Mechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sintering
description	Ti-6Al-4V alloy exhibits a good combination of excellent properties, such as high specific strength, high fatigue strength, good ductility and weldability. However, Ti-6Al-4V alloy shows low stiffness and poor wear resistance. To further increase the strength properties and improve the stiffness and wear resistance, TiB reinforced Ti-6Al-4V alloy matrix (TiB/Ti-6Al-4V) composites were fabricated by a spark plasma sintering (SPS) process. The TiB/Ti-6Al-4V alloy composites with 4.2 vol.% TiB, which were fabricated at a sintering temperature of 900 °C and for a holding time of 30 min, had the highest tensile strength of 1174 MPa. The Young’s modulus and Vickers microhardness of the composites increased with increasing TiB volume fraction, and the composite with 16.7 vol.% TiB exhibited values of 159 GPa and 517 HV, respectively. The tensile strength of the composite with 4.2 vol.% TiB at 400 °C was higher than that of the mild annealed Ti-6Al-4V alloy. The fatigue limits (over 107 cycles) at room temperature and 600 °C of the composites with 4.2 vol.% TiB were 350 MPa and 200 MPa, respectively. The creep strains at room temperature of the composites with 1.4 and 4.2 vol.% TiB did not increase with increasing creep time.
format	article
author	Hiroshi IZUI Tsubasa SHINOHARA
author_facet	Hiroshi IZUI Tsubasa SHINOHARA
author_sort	Hiroshi IZUI
title	Mechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sintering
title_short	Mechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sintering
title_full	Mechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sintering
title_fullStr	Mechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sintering
title_full_unstemmed	Mechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sintering
title_sort	mechanical properties of tib/ti-6al-4v alloy composites fabricated by spark plasma sintering
publisher	The Japan Society of Mechanical Engineers
publishDate	2017
url	https://doaj.org/article/2faa03db6e084ae988e57c48dbaa56a6
work_keys_str_mv	AT hiroshiizui mechanicalpropertiesoftibti6al4valloycompositesfabricatedbysparkplasmasintering AT tsubasashinohara mechanicalpropertiesoftibti6al4valloycompositesfabricatedbysparkplasmasintering
_version_	1718409709524877312

Mechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sintering

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