Comparison of Microstructure and Properties of Ni-Based Overlay Deposit under Longitudinal Magnetic Field and Transverse Magnetic Field

Abstract:

plasma arc sufacing； magnetic field style ；Ni-based alloy；microstructure and properties Abstract. The Ni60 alloy was overlaid on low carbon steel by plasma arc surfacing with Longitudinal magnetic field or transverse magnetic field. The magnetic field current and surfacing current could been changed during surfacing. After plasma arc surfacing with magnetic field, the XRD, wear loss tes, micro-hardness test were used to analyze the effect of magnetic field style on properties of overlay deposit. The acting mechanism of magnetic field style and parameters on properties and microstructure of overlay deposit was researched. The results indicate that longitudinal magnetic field and transverse magnetic field all can improve the properties of overlay deposit, but give little effectives intervention to the process parameters. The active effect of transverse magnetic field is better than longitudinal magnetic field because of transverse magnetic field can make the microstructure finer, component more uniform.

• Periodical: Advanced Materials Research (Volumes 557-559)
• Pages: 1742-1746
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.557-559.1742
• Online since: July 2012
• Authors: Zheng Jun Liu, Duo Liu, Chang Jun Liu
• Keywords: Magnetic Field Style, Microstructure and Properties, Ni-Based Alloy, Plasma Arc Surfacing

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