Corrosion behavior of laser-alloyed copper with titanium fabricated by high power diode laser

P. K. Wong; C. T. Kwok; Hau Chung Man; F. T. Cheng

doi:10.1016/j.corsci.2011.12.013

Corrosion behavior of laser-alloyed copper with titanium fabricated by high power diode laser

P. K. Wong, C. T. Kwok, Hau Chung Man, F. T. Cheng

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

30 Citations (Scopus)

Abstract

Laser surface alloying of commercially pure copper (cp Cu) with preplaced Ti powder has been successfully achieved using a high power diode laser. All laser-alloyed specimens have corrosion potentials in between that of cp Cu and commercially pure titanium (cp Ti) and their corrosion current densities are lower than that of cp Cu. Particularly, the specimen with 85. wt.% Ti fabricated at scanning speed of 35. mm/s shows the highest corrosion resistance, that is, about 150 times that of cp Cu and very close to that of cp Ti. Improvement of corrosion resistance is attributed to presence of Ti in the intermetallic and metallic phases for forming the protective oxide.

Original language	English
Pages (from-to)	228-240
Number of pages	13
Journal	Corrosion Science
Volume	57
DOIs	https://doi.org/10.1016/j.corsci.2011.12.013
Publication status	Published - 1 Apr 2012

Keywords

A. Copper
A. Intermetallics
A. Titanium
B. Polarization

ASJC Scopus subject areas

Materials Science(all)
Chemical Engineering(all)
Chemistry(all)

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10.1016/j.corsci.2011.12.013

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title = "Corrosion behavior of laser-alloyed copper with titanium fabricated by high power diode laser",

abstract = "Laser surface alloying of commercially pure copper (cp Cu) with preplaced Ti powder has been successfully achieved using a high power diode laser. All laser-alloyed specimens have corrosion potentials in between that of cp Cu and commercially pure titanium (cp Ti) and their corrosion current densities are lower than that of cp Cu. Particularly, the specimen with 85. wt.% Ti fabricated at scanning speed of 35. mm/s shows the highest corrosion resistance, that is, about 150 times that of cp Cu and very close to that of cp Ti. Improvement of corrosion resistance is attributed to presence of Ti in the intermetallic and metallic phases for forming the protective oxide.",

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AU - Wong, P. K.

AU - Kwok, C. T.

AU - Man, Hau Chung

AU - Cheng, F. T.

PY - 2012/4/1

Y1 - 2012/4/1

N2 - Laser surface alloying of commercially pure copper (cp Cu) with preplaced Ti powder has been successfully achieved using a high power diode laser. All laser-alloyed specimens have corrosion potentials in between that of cp Cu and commercially pure titanium (cp Ti) and their corrosion current densities are lower than that of cp Cu. Particularly, the specimen with 85. wt.% Ti fabricated at scanning speed of 35. mm/s shows the highest corrosion resistance, that is, about 150 times that of cp Cu and very close to that of cp Ti. Improvement of corrosion resistance is attributed to presence of Ti in the intermetallic and metallic phases for forming the protective oxide.

AB - Laser surface alloying of commercially pure copper (cp Cu) with preplaced Ti powder has been successfully achieved using a high power diode laser. All laser-alloyed specimens have corrosion potentials in between that of cp Cu and commercially pure titanium (cp Ti) and their corrosion current densities are lower than that of cp Cu. Particularly, the specimen with 85. wt.% Ti fabricated at scanning speed of 35. mm/s shows the highest corrosion resistance, that is, about 150 times that of cp Cu and very close to that of cp Ti. Improvement of corrosion resistance is attributed to presence of Ti in the intermetallic and metallic phases for forming the protective oxide.

KW - A. Copper

KW - A. Intermetallics

KW - A. Titanium

KW - B. Polarization

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DO - 10.1016/j.corsci.2011.12.013

M3 - Journal article

SN - 0010-938X

VL - 57

SP - 228

EP - 240

JO - Corrosion Science

JF - Corrosion Science

ER -

Corrosion behavior of laser-alloyed copper with titanium fabricated by high power diode laser

Abstract

Keywords

ASJC Scopus subject areas

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