Novel Ti based metal matrix composites reinforced with Al-Cr-Fe quasicrystals approximants

R. T. Li; Z. L. Dong; N. W. Khun; K. A. Khor

doi:10.1179/1743284714Y.0000000645

Novel Ti based metal matrix composites reinforced with Al-Cr-Fe quasicrystals approximants

R. T. Li^*, Z. L. Dong, N. W. Khun, K. A. Khor

^*Corresponding author for this work

Nanyang Technological University

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

16 Citations (Scopus)

Abstract

In this work, Ti/Al-Cr-Fe metal matrix composites were fabricated with Ti as matrix and Al-Cr-Fe quasicrystal approximants as reinforcements using spark plasma sintering. In all samples a Ti3Al ring forms around each Al-Cr-Fe particle as a bonding layer between Ti and Al-Cr-Fe particles. In the sample sintered with a holding time of 5 min, there are only TiAl regions present at the Ti₃Al/ Al-Cr-Fe interface. However, in the samples sintered with a holding time of 10, 15 or 20 min, TiAl, Ti(Al,Cr)₂ and L1₂ regions were detected at the Ti₃Al/Al-Cr-Fe interface. The addition of Al-Cr-Fe particles into the Ti matrix was found to improve the mircrohardness to 460 HV and increase the wear resistance by more than 50%.

Original language	English
Pages (from-to)	688-694
Number of pages	7
Journal	Metal Science
Volume	31
Issue number	6
DOIs	https://doi.org/10.1179/1743284714Y.0000000645
Publication status	Published - Apr 1 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 Institute of Materials, Minerals and Mining.

ASJC Scopus Subject Areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Keywords

Metal matrix composites
Phase transformation
Quasicrystal
Spark plasma sintering
Wear

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10.1179/1743284714Y.0000000645

Cite this

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title = "Novel Ti based metal matrix composites reinforced with Al-Cr-Fe quasicrystals approximants",

abstract = "In this work, Ti/Al-Cr-Fe metal matrix composites were fabricated with Ti as matrix and Al-Cr-Fe quasicrystal approximants as reinforcements using spark plasma sintering. In all samples a Ti3Al ring forms around each Al-Cr-Fe particle as a bonding layer between Ti and Al-Cr-Fe particles. In the sample sintered with a holding time of 5 min, there are only TiAl regions present at the Ti3Al/ Al-Cr-Fe interface. However, in the samples sintered with a holding time of 10, 15 or 20 min, TiAl, Ti(Al,Cr)2 and L12 regions were detected at the Ti3Al/Al-Cr-Fe interface. The addition of Al-Cr-Fe particles into the Ti matrix was found to improve the mircrohardness to 460 HV and increase the wear resistance by more than 50%.",

keywords = "Metal matrix composites, Phase transformation, Quasicrystal, Spark plasma sintering, Wear",

author = "Li, {R. T.} and Dong, {Z. L.} and Khun, {N. W.} and Khor, {K. A.}",

note = "Publisher Copyright: {\textcopyright} 2015 Institute of Materials, Minerals and Mining.",

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T1 - Novel Ti based metal matrix composites reinforced with Al-Cr-Fe quasicrystals approximants

AU - Li, R. T.

AU - Dong, Z. L.

AU - Khun, N. W.

AU - Khor, K. A.

PY - 2015/4/1

Y1 - 2015/4/1

N2 - In this work, Ti/Al-Cr-Fe metal matrix composites were fabricated with Ti as matrix and Al-Cr-Fe quasicrystal approximants as reinforcements using spark plasma sintering. In all samples a Ti3Al ring forms around each Al-Cr-Fe particle as a bonding layer between Ti and Al-Cr-Fe particles. In the sample sintered with a holding time of 5 min, there are only TiAl regions present at the Ti3Al/ Al-Cr-Fe interface. However, in the samples sintered with a holding time of 10, 15 or 20 min, TiAl, Ti(Al,Cr)2 and L12 regions were detected at the Ti3Al/Al-Cr-Fe interface. The addition of Al-Cr-Fe particles into the Ti matrix was found to improve the mircrohardness to 460 HV and increase the wear resistance by more than 50%.

AB - In this work, Ti/Al-Cr-Fe metal matrix composites were fabricated with Ti as matrix and Al-Cr-Fe quasicrystal approximants as reinforcements using spark plasma sintering. In all samples a Ti3Al ring forms around each Al-Cr-Fe particle as a bonding layer between Ti and Al-Cr-Fe particles. In the sample sintered with a holding time of 5 min, there are only TiAl regions present at the Ti3Al/ Al-Cr-Fe interface. However, in the samples sintered with a holding time of 10, 15 or 20 min, TiAl, Ti(Al,Cr)2 and L12 regions were detected at the Ti3Al/Al-Cr-Fe interface. The addition of Al-Cr-Fe particles into the Ti matrix was found to improve the mircrohardness to 460 HV and increase the wear resistance by more than 50%.

KW - Metal matrix composites

KW - Phase transformation

KW - Quasicrystal

KW - Spark plasma sintering

KW - Wear

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ER -

Novel Ti based metal matrix composites reinforced with Al-Cr-Fe quasicrystals approximants

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

Access to Document

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