Friction and Wear Properties of Laser Cladding Coatings under Boundary Lubrication Conditions

Abstract:

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AISI 1045 steels were laser-clad with Ni-based powder by CO2 HJ-4 coherent laser. The phase composition of the laser-cladding coating was investigated by means of X-ray diffraction (XRD). The cross-section of the cladding coating was observed using a scanning electron microscopy (SEM). The friction and wear properties of the laser cladding coatings sliding against AISI 52100 steel under the lubrication of liquid paraffin containing various anti-wear and extreme pressure additives were investigated using an Optimol SRV reciprocating motion friction and wear tester. Results showed that the laser-cladding coating considerably decreased coefficient of friction and increased wear resistance in sliding against AISI 52100 steel and attributed to the change in the hardness, phase composition of the laser-cladding coating and tribochemical reactions between the laser-cladding coating and the extreme pressure and anti-wear additives.

Info:

Periodical:

Advanced Materials Research (Volumes 314-316)

Edited by:

Jian Gao

Pages:

143-146

DOI:

10.4028/www.scientific.net/AMR.314-316.143

Citation:

X. Feng and Y. Q. Xia, "Friction and Wear Properties of Laser Cladding Coatings under Boundary Lubrication Conditions", Advanced Materials Research, Vols. 314-316, pp. 143-146, 2011

Online since:

August 2011

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$35.00

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