Microstructure and Properties of High-Energy Pulsed Cold-Welded Surfacing Layers on 18Cr2Ni4WA Steel

Qing Zhang; Qing Zhang; Wei Shen; Jun Tan

doi:10.4028/www.scientific.net/AMR.557-559.1353

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 557-559Microstructure and Properties of High-Energy...

Microstructure and Properties of High-Energy Pulsed Cold-Welded Surfacing Layers on 18Cr2Ni4WA Steel

Abstract:

The cold-welded surfacing layers have been prepared with SKD61 welding wire by high-energy pulsed cold-welding technology on 18Cr2Ni4WA steel. The microstructure of cold-welded surfacing layers was observed by Scanning Electron Microscope(SEM)and the bonding Strength and mircohardness were tested as well. The results showed that the microstructure of cold-welded surfacing layer is mainly composed of acicular martensite ; the matrix structure of composition is granular bainite;The mean cohesive strength of cold-welded surfacing layer is 826MPa;and its mean microhardness(393.5HV)is obviously higher than that of substrate, which can increase the anti-wear property of material.

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Periodical:

Advanced Materials Research (Volumes 557-559)

Pages:

1353-1357

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.557-559.1353

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Online since:

July 2012

Authors:

Qing Zhang, Qing Zhang, Wei Shen, Jun Tan

Keywords:

Cold-Welded Surfacing Layer, High-Energy Pulsed, Mechanical Property, Microstructure

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