Microstructure and mechanical properties of P/M titanium matrix composites reinforced by in-situ synthesized TiC-TiB

Shufeng Li; Katsuyoshi Kondoh; Hisashi Imai; Biao Chen; Lei Jia; Junko Umeda

doi:10.1016/j.msea.2015.01.033

Microstructure and mechanical properties of P/M titanium matrix composites reinforced by in-situ synthesized TiC-TiB

Shufeng Li
, Katsuyoshi Kondoh
, Hisashi Imai
, Biao Chen
, Lei Jia
, Junko Umeda

Xi'an University of Technology
The University of Osaka

Research output: Contribution to journal › Article › peer-review

123 Scopus citations

Abstract

Titanium matrix composites (TMCs) were prepared via reactive Ti-B₄C system by powder metallurgy and hot extrusion route. The effect of the volume fraction of in-situ synthesized TiC particles and TiB whiskers on microstructure and mechanical behavior of TMCs were investigated. TiB whiskers showed favorable alignment oriented parallel to the deformation axis after hot extrusion; TiC particles and TiB whiskers distributed homogenously throughout the as-extruded composites. σ_UTS of the synthesized TMCs increased gradually from 654MPa to 1138MPa when the volume fractions of hybrid TiC and TiB were raised from zero to theoretical value of 13.6vol%; the elongation decreased from 32.4% to 2.6% correspondingly. The strengthening effect of in-situ formed TiC-TiB hybrid reinforcements at room and elevated temperature was studied based on the load-transfer mechanism between the titanium matrix and TiC-TiB reinforcements. It was found that synergistic of the TiC particle and TiB whisker showed beneficial strengthening effect on mechanical properties of TMCs.

Original language	English
Pages (from-to)	75-83
Number of pages	9
Journal	Materials Science and Engineering: A
Volume	628
DOIs	https://doi.org/10.1016/j.msea.2015.01.033
State	Published - 5 Mar 2015
Externally published	Yes

Keywords

In-situ reaction
Mechanical properties
Powder metallurgy (P/M)
Ti matrix composites (TMCs)
TiB whisker
TiC particle

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10.1016/j.msea.2015.01.033

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@article{fddf0165d2a84d28ad249405fffe43b7,

title = "Microstructure and mechanical properties of P/M titanium matrix composites reinforced by in-situ synthesized TiC-TiB",

abstract = "Titanium matrix composites (TMCs) were prepared via reactive Ti-B4C system by powder metallurgy and hot extrusion route. The effect of the volume fraction of in-situ synthesized TiC particles and TiB whiskers on microstructure and mechanical behavior of TMCs were investigated. TiB whiskers showed favorable alignment oriented parallel to the deformation axis after hot extrusion; TiC particles and TiB whiskers distributed homogenously throughout the as-extruded composites. σUTS of the synthesized TMCs increased gradually from 654MPa to 1138MPa when the volume fractions of hybrid TiC and TiB were raised from zero to theoretical value of 13.6vol\%; the elongation decreased from 32.4\% to 2.6\% correspondingly. The strengthening effect of in-situ formed TiC-TiB hybrid reinforcements at room and elevated temperature was studied based on the load-transfer mechanism between the titanium matrix and TiC-TiB reinforcements. It was found that synergistic of the TiC particle and TiB whisker showed beneficial strengthening effect on mechanical properties of TMCs.",

keywords = "In-situ reaction, Mechanical properties, Powder metallurgy (P/M), Ti matrix composites (TMCs), TiB whisker, TiC particle",

author = "Shufeng Li and Katsuyoshi Kondoh and Hisashi Imai and Biao Chen and Lei Jia and Junko Umeda",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

month = mar,

day = "5",

doi = "10.1016/j.msea.2015.01.033",

language = "英语",

volume = "628",

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TY - JOUR

T1 - Microstructure and mechanical properties of P/M titanium matrix composites reinforced by in-situ synthesized TiC-TiB

AU - Li, Shufeng

AU - Kondoh, Katsuyoshi

AU - Imai, Hisashi

AU - Chen, Biao

AU - Jia, Lei

AU - Umeda, Junko

PY - 2015/3/5

Y1 - 2015/3/5

N2 - Titanium matrix composites (TMCs) were prepared via reactive Ti-B4C system by powder metallurgy and hot extrusion route. The effect of the volume fraction of in-situ synthesized TiC particles and TiB whiskers on microstructure and mechanical behavior of TMCs were investigated. TiB whiskers showed favorable alignment oriented parallel to the deformation axis after hot extrusion; TiC particles and TiB whiskers distributed homogenously throughout the as-extruded composites. σUTS of the synthesized TMCs increased gradually from 654MPa to 1138MPa when the volume fractions of hybrid TiC and TiB were raised from zero to theoretical value of 13.6vol%; the elongation decreased from 32.4% to 2.6% correspondingly. The strengthening effect of in-situ formed TiC-TiB hybrid reinforcements at room and elevated temperature was studied based on the load-transfer mechanism between the titanium matrix and TiC-TiB reinforcements. It was found that synergistic of the TiC particle and TiB whisker showed beneficial strengthening effect on mechanical properties of TMCs.

AB - Titanium matrix composites (TMCs) were prepared via reactive Ti-B4C system by powder metallurgy and hot extrusion route. The effect of the volume fraction of in-situ synthesized TiC particles and TiB whiskers on microstructure and mechanical behavior of TMCs were investigated. TiB whiskers showed favorable alignment oriented parallel to the deformation axis after hot extrusion; TiC particles and TiB whiskers distributed homogenously throughout the as-extruded composites. σUTS of the synthesized TMCs increased gradually from 654MPa to 1138MPa when the volume fractions of hybrid TiC and TiB were raised from zero to theoretical value of 13.6vol%; the elongation decreased from 32.4% to 2.6% correspondingly. The strengthening effect of in-situ formed TiC-TiB hybrid reinforcements at room and elevated temperature was studied based on the load-transfer mechanism between the titanium matrix and TiC-TiB reinforcements. It was found that synergistic of the TiC particle and TiB whisker showed beneficial strengthening effect on mechanical properties of TMCs.

KW - In-situ reaction

KW - Mechanical properties

KW - Powder metallurgy (P/M)

KW - Ti matrix composites (TMCs)

KW - TiB whisker

KW - TiC particle

UR - https://www.scopus.com/pages/publications/84961290919

U2 - 10.1016/j.msea.2015.01.033

DO - 10.1016/j.msea.2015.01.033

M3 - 文章

AN - SCOPUS:84961290919

SN - 0921-5093

VL - 628

SP - 75

EP - 83

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Microstructure and mechanical properties of P/M titanium matrix composites reinforced by in-situ synthesized TiC-TiB

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Keywords

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