Microstructure and wear behaviour of laser-induced thermite reaction Al2O3ceramic coatings on pure aluminum and AA7075 aluminum alloy

Kaijin Huang; Xin Lin; Changsheng Xie; Tai Man Yue

doi:10.1007/s11595-006-1089-7

Microstructure and wear behaviour of laser-induced thermite reaction Al₂O₃ceramic coatings on pure aluminum and AA7075 aluminum alloy

Kaijin Huang, Xin Lin, Changsheng Xie, Tai Man Yue

Research output: Journal article publication › Journal article › Academic research › peer-review

18 Citations (Scopus)

Abstract

Wear-resistant laser-induced thermite reaction Al2O3ceramic coatings can be fabricated on pure Al and AA7075 aluminum alloy by laser cladding (one-step method) and laser cladding followed by laser re-melting (two-step method) using mixed powders CuO-Al-SiO2in order to improve the wear properties of aluminum and aluminum alloy, respectively. The microstructure of the coatings was characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The wear resistance of the coatings was evaluated under dry sliding wear test condition at room temperature. Owing to the presence of hard α-Al2O3and γ-Al2O3phases, the coatings exhibited excellent wear resistance. In addition, the wear resistance of the coatings fabricated by two-step method is superior to that of the coatings fabricated by one-step method.

Original language	English
Pages (from-to)	89-94
Number of pages	6
Journal	Journal Wuhan University of Technology, Materials Science Edition
Volume	23
Issue number	1
DOIs	https://doi.org/10.1007/s11595-006-1089-7
Publication status	Published - 1 Feb 2008

Keywords

Aluminum alloy
Laser cladding
Thermite reaction
Wear

ASJC Scopus subject areas

General Materials Science

More information

10.1007/s11595-006-1089-7

Cite this

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title = "Microstructure and wear behaviour of laser-induced thermite reaction Al2O3ceramic coatings on pure aluminum and AA7075 aluminum alloy",

abstract = "Wear-resistant laser-induced thermite reaction Al2O3ceramic coatings can be fabricated on pure Al and AA7075 aluminum alloy by laser cladding (one-step method) and laser cladding followed by laser re-melting (two-step method) using mixed powders CuO-Al-SiO2in order to improve the wear properties of aluminum and aluminum alloy, respectively. The microstructure of the coatings was characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The wear resistance of the coatings was evaluated under dry sliding wear test condition at room temperature. Owing to the presence of hard α-Al2O3and γ-Al2O3phases, the coatings exhibited excellent wear resistance. In addition, the wear resistance of the coatings fabricated by two-step method is superior to that of the coatings fabricated by one-step method.",

keywords = "Aluminum alloy, Laser cladding, Thermite reaction, Wear",

author = "Kaijin Huang and Xin Lin and Changsheng Xie and Yue, {Tai Man}",

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Microstructure and wear behaviour of laser-induced thermite reaction Al₂O₃ceramic coatings on pure aluminum and AA7075 aluminum alloy. / Huang, Kaijin; Lin, Xin; Xie, Changsheng et al.
In: Journal Wuhan University of Technology, Materials Science Edition, Vol. 23, No. 1, 01.02.2008, p. 89-94.

Research output: Journal article publication › Journal article › Academic research › peer-review

TY - JOUR

T1 - Microstructure and wear behaviour of laser-induced thermite reaction Al2O3ceramic coatings on pure aluminum and AA7075 aluminum alloy

AU - Huang, Kaijin

AU - Lin, Xin

AU - Xie, Changsheng

AU - Yue, Tai Man

PY - 2008/2/1

Y1 - 2008/2/1

N2 - Wear-resistant laser-induced thermite reaction Al2O3ceramic coatings can be fabricated on pure Al and AA7075 aluminum alloy by laser cladding (one-step method) and laser cladding followed by laser re-melting (two-step method) using mixed powders CuO-Al-SiO2in order to improve the wear properties of aluminum and aluminum alloy, respectively. The microstructure of the coatings was characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The wear resistance of the coatings was evaluated under dry sliding wear test condition at room temperature. Owing to the presence of hard α-Al2O3and γ-Al2O3phases, the coatings exhibited excellent wear resistance. In addition, the wear resistance of the coatings fabricated by two-step method is superior to that of the coatings fabricated by one-step method.

AB - Wear-resistant laser-induced thermite reaction Al2O3ceramic coatings can be fabricated on pure Al and AA7075 aluminum alloy by laser cladding (one-step method) and laser cladding followed by laser re-melting (two-step method) using mixed powders CuO-Al-SiO2in order to improve the wear properties of aluminum and aluminum alloy, respectively. The microstructure of the coatings was characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The wear resistance of the coatings was evaluated under dry sliding wear test condition at room temperature. Owing to the presence of hard α-Al2O3and γ-Al2O3phases, the coatings exhibited excellent wear resistance. In addition, the wear resistance of the coatings fabricated by two-step method is superior to that of the coatings fabricated by one-step method.

KW - Aluminum alloy

KW - Laser cladding

KW - Thermite reaction

KW - Wear

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