Novel high strength titanium-titanium composites produced using field-assisted sintering technology (FAST)

E. L. Calvert; A. J. Knowles; J. J. Pope; D. Dye; M. Jackson

doi:10.1016/j.scriptamat.2018.08.036

Novel high strength titanium-titanium composites produced using field-assisted sintering technology (FAST)

E. L. Calvert^*, A. J. Knowles, J. J. Pope, D. Dye, M. Jackson

^*Corresponding author for this work

Metallurgy and Materials

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

12 Citations (Scopus)

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Abstract

To increase the strength of titanium alloys beyond that achievable with α-β microstructures, alternative reinforcing methods are necessary. Here, field-assisted sintering technology (FAST) has been used to produce a novel Ti-5Al-5Mo-5V-3Cr (Ti-5553) metal-matrix-composite (MMC) reinforced with 0-25 wt.% of a ∼2 GPa yield strength TiFeMo alloy strengthened by ordered body-centred cubic intermetallic and ω phases. The interdiffusion region between Ti-5553 and TiFeMo particles was studied by modelling, electron microscopy, and nanoindentation to examine the effect of graded composition on mechanical properties and formation of α, intermetallic, and ω phases, which resulted in a > 200 MPa strengthening benefit over unreinforced Ti-5553.

Original language	English
Pages (from-to)	51-57
Number of pages	7
Journal	Scripta Materialia
Volume	159
Early online date	13 Sept 2018
DOIs	https://doi.org/10.1016/j.scriptamat.2018.08.036
Publication status	Published - 15 Jan 2019

Keywords

Metal matrix composite
Omega
Phase transformations
Spark plasma sintering
Titanium alloys

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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title = "Novel high strength titanium-titanium composites produced using field-assisted sintering technology (FAST)",

abstract = "To increase the strength of titanium alloys beyond that achievable with α-β microstructures, alternative reinforcing methods are necessary. Here, field-assisted sintering technology (FAST) has been used to produce a novel Ti-5Al-5Mo-5V-3Cr (Ti-5553) metal-matrix-composite (MMC) reinforced with 0-25 wt.% of a ∼2 GPa yield strength TiFeMo alloy strengthened by ordered body-centred cubic intermetallic and ω phases. The interdiffusion region between Ti-5553 and TiFeMo particles was studied by modelling, electron microscopy, and nanoindentation to examine the effect of graded composition on mechanical properties and formation of α, intermetallic, and ω phases, which resulted in a > 200 MPa strengthening benefit over unreinforced Ti-5553.",

keywords = "Metal matrix composite, Omega, Phase transformations, Spark plasma sintering, Titanium alloys",

author = "Calvert, {E. L.} and Knowles, {A. J.} and Pope, {J. J.} and D. Dye and M. Jackson",

year = "2019",

month = jan,

day = "15",

doi = "10.1016/j.scriptamat.2018.08.036",

language = "English",

volume = "159",

pages = "51--57",

journal = "Scripta Materialia",

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TY - JOUR

T1 - Novel high strength titanium-titanium composites produced using field-assisted sintering technology (FAST)

AU - Calvert, E. L.

AU - Knowles, A. J.

AU - Pope, J. J.

AU - Dye, D.

AU - Jackson, M.

PY - 2019/1/15

Y1 - 2019/1/15

N2 - To increase the strength of titanium alloys beyond that achievable with α-β microstructures, alternative reinforcing methods are necessary. Here, field-assisted sintering technology (FAST) has been used to produce a novel Ti-5Al-5Mo-5V-3Cr (Ti-5553) metal-matrix-composite (MMC) reinforced with 0-25 wt.% of a ∼2 GPa yield strength TiFeMo alloy strengthened by ordered body-centred cubic intermetallic and ω phases. The interdiffusion region between Ti-5553 and TiFeMo particles was studied by modelling, electron microscopy, and nanoindentation to examine the effect of graded composition on mechanical properties and formation of α, intermetallic, and ω phases, which resulted in a > 200 MPa strengthening benefit over unreinforced Ti-5553.

AB - To increase the strength of titanium alloys beyond that achievable with α-β microstructures, alternative reinforcing methods are necessary. Here, field-assisted sintering technology (FAST) has been used to produce a novel Ti-5Al-5Mo-5V-3Cr (Ti-5553) metal-matrix-composite (MMC) reinforced with 0-25 wt.% of a ∼2 GPa yield strength TiFeMo alloy strengthened by ordered body-centred cubic intermetallic and ω phases. The interdiffusion region between Ti-5553 and TiFeMo particles was studied by modelling, electron microscopy, and nanoindentation to examine the effect of graded composition on mechanical properties and formation of α, intermetallic, and ω phases, which resulted in a > 200 MPa strengthening benefit over unreinforced Ti-5553.

KW - Metal matrix composite

KW - Omega

KW - Phase transformations

KW - Spark plasma sintering

KW - Titanium alloys

UR - http://www.scopus.com/inward/record.url?scp=85053185503&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2018.08.036

DO - 10.1016/j.scriptamat.2018.08.036

M3 - Article

AN - SCOPUS:85053185503

SN - 1359-6462

VL - 159

SP - 51

EP - 57

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Novel high strength titanium-titanium composites produced using field-assisted sintering technology (FAST)

Abstract

Keywords

ASJC Scopus subject areas

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