Laser composite surfacing of copper for improved tribological properties

Copper and its alloys are important engineering materials because of their excellent thermal and electrical conductivities. However, a relatively poor resistance to wear and erosion restrict its wide ranging applications. In the present study, commercially pure copper (of dimensions 20 × 20 × 10 μm)...

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Bibliographic Details
Published inSurface engineering Vol. 23; no. 2; pp. 120 - 122
Main Authors Majumdar, J. D., Chandra, B. R., Biswas, D., Nath, A. K., Manna, I.
Format Journal Article
LanguageEnglish
Published London, England Taylor & Francis 01.03.2007
SAGE Publications
Subjects
COMPOSITE
COPPER
LASER
SURFACE
WEAR
SURFACE
COPPER
LASER
COMPOSITE
WEAR
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Summary:Copper and its alloys are important engineering materials because of their excellent thermal and electrical conductivities. However, a relatively poor resistance to wear and erosion restrict its wide ranging applications. In the present study, commercially pure copper (of dimensions 20 × 20 × 10 μm) was subjected to laser composite surfacing by melting the surface of sand blasted copper using a continuous wave CO 2 laser and simultaneous deposition of a mixture of K 2 TiF 6 and KBF 6 (in the weight ratio of 2 : 1) on the surface of molten copper. Following laser processing, a detailed study of the microstructure and phases of the surface layer was carried out and correlated with laser parameters. The mechanical (microhardness and wear resistance) properties of the surface layer were evaluated.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0267-0844
1743-2944
DOI:10.1179/174329407X169476