Sliding wear resistance of metal matrix composite layers prepared by high power laser

V. Ocelík, D. Matthews, J. Th M. De Hosson*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

101 Citations (Scopus)

Abstract

Two laser surface engineering techniques, Laser Cladding and Laser Melt Injection (LMI), were used to prepare three different metal matrix composite layers with a thickness of about 1 mm and approximately 25-30% volume fraction of ceramic particles. SiC/Al-8Si, WC/Ti-6Al-4V and TiB2/Ti-6Al-4V layers were prepared by a Laser Melt Injection process, whereby additional material in the form of ceramic particles is injected into the molten substrate. As a result, a microstructure characterized by hard ceramic particles distributed in a metal matrix with very strong bonding is formed in the surface layer of the treated metal. A TiB/Ti-6Al-4V metal matrix composite layer was produced on Ti-6Al-4V substrates by conventional laser cladding. A mixture of TiB2/ Ti powders has been used as a precursor to obtain two microstructurally distinct layers, namely eutectic and primary TiB particles dispersed in the Ti-6Al-4V matrix. Sliding wear properties of these metal matrix composites layers were studied at boundary lubrication conditions and compared with the wear of the substrate materials. The observed wear mechanisms are summarized and related to detailed microstructural observations. The layers have been found to show excellent interfacial bonding, coupled with dramatically improved tribological properties expressed through a relative wear resistance value ranging from 30 to 1500.

Original languageEnglish
Pages (from-to)303-315
Number of pages13
JournalSurface and coatings technology
Volume197
Issue number2-3
Early online date28 Oct 2004
DOIs
Publication statusPublished - 22 Jul 2005
Externally publishedYes

Fingerprint

metal matrix composites
High power lasers
wear resistance
high power lasers
Wear resistance
sliding
Metals
Composite materials
Laser cladding
Wear of materials
lasers
ceramics
Lasers
Substrates
injection
boundary lubrication
Powders
Eutectics
Lubrication
Molten materials

Keywords

  • Borides
  • Carbides
  • Laser surface treatment
  • Metal matrix composites
  • Microstructure
  • Scanning Electron Microscopy
  • Wear

Cite this

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title = "Sliding wear resistance of metal matrix composite layers prepared by high power laser",
abstract = "Two laser surface engineering techniques, Laser Cladding and Laser Melt Injection (LMI), were used to prepare three different metal matrix composite layers with a thickness of about 1 mm and approximately 25-30{\%} volume fraction of ceramic particles. SiC/Al-8Si, WC/Ti-6Al-4V and TiB2/Ti-6Al-4V layers were prepared by a Laser Melt Injection process, whereby additional material in the form of ceramic particles is injected into the molten substrate. As a result, a microstructure characterized by hard ceramic particles distributed in a metal matrix with very strong bonding is formed in the surface layer of the treated metal. A TiB/Ti-6Al-4V metal matrix composite layer was produced on Ti-6Al-4V substrates by conventional laser cladding. A mixture of TiB2/ Ti powders has been used as a precursor to obtain two microstructurally distinct layers, namely eutectic and primary TiB particles dispersed in the Ti-6Al-4V matrix. Sliding wear properties of these metal matrix composites layers were studied at boundary lubrication conditions and compared with the wear of the substrate materials. The observed wear mechanisms are summarized and related to detailed microstructural observations. The layers have been found to show excellent interfacial bonding, coupled with dramatically improved tribological properties expressed through a relative wear resistance value ranging from 30 to 1500.",
keywords = "Borides, Carbides, Laser surface treatment, Metal matrix composites, Microstructure, Scanning Electron Microscopy, Wear",
author = "V. Ocel{\'i}k and D. Matthews and {De Hosson}, {J. Th M.}",
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Sliding wear resistance of metal matrix composite layers prepared by high power laser. / Ocelík, V.; Matthews, D.; De Hosson, J. Th M.

In: Surface and coatings technology, Vol. 197, No. 2-3, 22.07.2005, p. 303-315.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Sliding wear resistance of metal matrix composite layers prepared by high power laser

AU - Ocelík, V.

AU - Matthews, D.

AU - De Hosson, J. Th M.

PY - 2005/7/22

Y1 - 2005/7/22

N2 - Two laser surface engineering techniques, Laser Cladding and Laser Melt Injection (LMI), were used to prepare three different metal matrix composite layers with a thickness of about 1 mm and approximately 25-30% volume fraction of ceramic particles. SiC/Al-8Si, WC/Ti-6Al-4V and TiB2/Ti-6Al-4V layers were prepared by a Laser Melt Injection process, whereby additional material in the form of ceramic particles is injected into the molten substrate. As a result, a microstructure characterized by hard ceramic particles distributed in a metal matrix with very strong bonding is formed in the surface layer of the treated metal. A TiB/Ti-6Al-4V metal matrix composite layer was produced on Ti-6Al-4V substrates by conventional laser cladding. A mixture of TiB2/ Ti powders has been used as a precursor to obtain two microstructurally distinct layers, namely eutectic and primary TiB particles dispersed in the Ti-6Al-4V matrix. Sliding wear properties of these metal matrix composites layers were studied at boundary lubrication conditions and compared with the wear of the substrate materials. The observed wear mechanisms are summarized and related to detailed microstructural observations. The layers have been found to show excellent interfacial bonding, coupled with dramatically improved tribological properties expressed through a relative wear resistance value ranging from 30 to 1500.

AB - Two laser surface engineering techniques, Laser Cladding and Laser Melt Injection (LMI), were used to prepare three different metal matrix composite layers with a thickness of about 1 mm and approximately 25-30% volume fraction of ceramic particles. SiC/Al-8Si, WC/Ti-6Al-4V and TiB2/Ti-6Al-4V layers were prepared by a Laser Melt Injection process, whereby additional material in the form of ceramic particles is injected into the molten substrate. As a result, a microstructure characterized by hard ceramic particles distributed in a metal matrix with very strong bonding is formed in the surface layer of the treated metal. A TiB/Ti-6Al-4V metal matrix composite layer was produced on Ti-6Al-4V substrates by conventional laser cladding. A mixture of TiB2/ Ti powders has been used as a precursor to obtain two microstructurally distinct layers, namely eutectic and primary TiB particles dispersed in the Ti-6Al-4V matrix. Sliding wear properties of these metal matrix composites layers were studied at boundary lubrication conditions and compared with the wear of the substrate materials. The observed wear mechanisms are summarized and related to detailed microstructural observations. The layers have been found to show excellent interfacial bonding, coupled with dramatically improved tribological properties expressed through a relative wear resistance value ranging from 30 to 1500.

KW - Borides

KW - Carbides

KW - Laser surface treatment

KW - Metal matrix composites

KW - Microstructure

KW - Scanning Electron Microscopy

KW - Wear

U2 - 10.1016/j.surfcoat.2004.09.003

DO - 10.1016/j.surfcoat.2004.09.003

M3 - Article

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VL - 197

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EP - 315

JO - Surface and coatings technology

JF - Surface and coatings technology

SN - 0257-8972

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