UM  > Faculty of Science and Technology  > DEPARTMENT OF ELECTROMECHANICAL ENGINEERING
Laser surface alloying (LSA) of copper for electrical erosion resistance
P.K.Wong1; C.T.Kwok1; H.C.Man2; F.T.Cheng2
2012
Source PublicationLaser Surface Modification of Alloys for Corrosion and Erosion Resistance
Author of SourceChi Tat Kwok
Publication PlaceENGLAND
PublisherWOODHEAD PUBL LTD, ABINGTON HALL ABINGTON, CAMBRIDGE CB1 6AH, CAMBS, ENGLAND
Pages288-319
Abstract

In order to enhance the electrical erosion and corrosion resistance and hence the lifespan of copper for applying as the electrical contacts, surface modification employing various metals such as Cr, W, Ni, Al and Ti on copper was attempted using laser surface alloying with a 2.5 kW continuous wave (CW) Nd : YAG (yttrium aluminum garnet) laser. The microstructure, hardness, electrical erosion and corrosion resistance and interfacial contact resistance (ICR) of the laser-alloyed copper were compared with those of cold-drawn pure copper. Among all specimens, the laser-alloyed copper with Ti shows the most significant improvement in electrical erosion while the electrical conductivity can be preserved.

KeywordLaser Surface Alloying Electrical Erosion Corrosion Electrical Contact Materials
DOIhttps://doi.org/10.1533/9780857095831.2.288
Language英語English
ISBN978-0-85709-583-1
WOS IDWOS:Metallurgy & Metallurgical Engineering
WOS KeywordMetallurgy & Metallurgical Engineering
WOS SubjectWos:000311620500009
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Document TypeBook chapter
CollectionDEPARTMENT OF ELECTROMECHANICAL ENGINEERING
Affiliation1.University of Macau, China
2.The Hong Kong Polytechnic University, China
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
P.K.Wong,C.T.Kwok,H.C.Man,et al. Laser surface alloying (LSA) of copper for electrical erosion resistance. ENGLAND:WOODHEAD PUBL LTD, ABINGTON HALL ABINGTON, CAMBRIDGE CB1 6AH, CAMBS, ENGLAND,2012:288-319.
APA P.K.Wong,C.T.Kwok,H.C.Man,&F.T.Cheng.(2012).Laser surface alloying (LSA) of copper for electrical erosion resistance.Laser Surface Modification of Alloys for Corrosion and Erosion Resistance,288-319.
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