UM  > Faculty of Science and Technology  > DEPARTMENT OF ELECTROMECHANICAL ENGINEERING
Laser surface alloying of copper with titanium: Part I. Electrical wear resistance in dry condition. Part II. Electrical wear resistance in wet and corrosive condition
C.T. Kwok1,2; P.K. Wong1; H.C. Man3
2016-07-15
Source PublicationSurface and Coatings Technology
ISSN0257-8972
Volume297Pages:58-73
Abstract

A high-power diode laser was used for alloying titanium on commercially pure copper (cp Cu) for enhancing electrical sliding wear in air. Microstructure and phases present were analyzed using scanningelectron microscopy and X-ray diffraction, respectively. Electrical sliding wear tests in air were conducted with a pin-on-disc tribometer with andwithout electric current. The electrical slidingwear resistances of all laser-alloyed samples are significantly enhanced by 3 orders of magnitude as compared with cp Cu. Among the laser-alloyed samples, the one with 70 wt.% Ti and average hardness of 661 HV0.2 possesses the highest electrical sliding wear resistance. The enhancement in electrical wear resistance in air is attributed to the presence of Cu-Ti intermetallic phases (IMPs) and solid solution hardening.

KeywordElectrical Sliding Wear Hardness Intermetallic Phases Laser Surface Alloying
DOIhttps://doi.org/10.1016/j.surfcoat.2016.04.008
URLView the original
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Coatings & Films ; Physics, Applied
WOS IDWOS:000377820000008 ISSN: 0257-8972
PublisherELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND
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Document TypeJournal article
CollectionDEPARTMENT OF ELECTROMECHANICAL ENGINEERING
Affiliation1.Department of Electromechanical Engineering, University of Macau, China
2.Institute of Applied Physics and Materials Engineering, University of Macau, China
3.Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hong Kong, China
First Author AffilicationUniversity of Macau;  INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
C.T. Kwok,P.K. Wong,H.C. Man. Laser surface alloying of copper with titanium: Part I. Electrical wear resistance in dry condition. Part II. Electrical wear resistance in wet and corrosive condition[J]. Surface and Coatings Technology,2016,297:58-73.
APA C.T. Kwok,P.K. Wong,&H.C. Man.(2016).Laser surface alloying of copper with titanium: Part I. Electrical wear resistance in dry condition. Part II. Electrical wear resistance in wet and corrosive condition.Surface and Coatings Technology,297,58-73.
MLA C.T. Kwok,et al."Laser surface alloying of copper with titanium: Part I. Electrical wear resistance in dry condition. Part II. Electrical wear resistance in wet and corrosive condition".Surface and Coatings Technology 297(2016):58-73.
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