Wear performance of Fe-based alloy coating on the 40Cr steel treated by laser cladding

song jie; zhang qing-mao; lin xiao-cong; liao jian-hong

Volume 20 Issue 01

Jan. 2008

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Article Navigation > High Power Laser and Particle Beams > 2008 > 20(01): 0-

wang wen-dou, xie wei-ping, song sheng-yi, et al. Transverse space-charge flow in four magnetically insulated transmission lines[J]. High Power Laser and Particle Beams, 2006, 18.

Citation:

song jie, zhang qing-mao, lin xiao-cong, et al. Wear performance of Fe-based alloy coating on the 40Cr steel treated by laser cladding[J]. High Power Laser and Particle Beams, 2008, 20.

wang wen-dou, xie wei-ping, song sheng-yi, et al. Transverse space-charge flow in four magnetically insulated transmission lines[J]. High Power Laser and Particle Beams, 2006, 18.

Citation:

song jie, zhang qing-mao, lin xiao-cong, et al. Wear performance of Fe-based alloy coating on the 40Cr steel treated by laser cladding[J]. High Power Laser and Particle Beams, 2008, 20.

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Wear performance of Fe-based alloy coating on the 40Cr steel treated by laser cladding

1.
Laboratory of Laser Processing Technology,South China Normal University,Guangzhou 510631,China;
2.
Guangzhou Riton Laser CO.,Ltd,Guangzhou 510631,China

Publish Date: 2008-01-15

Abstract

Abstract

In order to investigate the tribological performance of laser clad coating about die steel, laser cladding techniques were adopted with Fe alloy powders. Tests were carried out using laser clad layers as upper samples and GCr15 steel as lower samples with HT500 abrasion tester. The results were compared with 40Cr's.The morphologies of wear scars were observed with optical microscopy. The tests show that the friction coefficient of 40Cr is bigger than the clad coating's with the load less than 250 g .The friction coefficient reduces with load increasing when the load is less than 300 g. The 40Cr's friction coefficient is (0.563～0.589) and increases with time when the load is 300 g. The friction coefficient of laser is (0.431～0.457) and clad layer decreases under the same condition. The
- laser cladding,
- friction coefficient,
- loading,
- performance

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