Ni60-SiC coating prepared by plasma spraying,plasma re-melting and plasma spray welding on surface of hot forging die |
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Authors: | Email author" target="_blank">Hongfu?WangEmail author Huachang?Wang Xiao?Wang |
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Affiliation: | (1) Department of Mechanical Engineering, Tungnan University, Taipei, Taiwan;(2) Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan |
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Abstract: | In order to produce the hear-resistant inner layer of hot-forging die, plasma spraying and plasma re-melting and plasma spray
welding were adopted. Substrate material was W6Mo5Cr4V2, including 10%, 20%, 30% SiC ceramic powder used as coating material
to obtain different Ni-based SiC alloys coating. Micro-structure and micro-hardness analysis of the coating layer were followed,
as well as thermophysical properties for the coating layer were measured. The experimental results show that the coating prepared
with 70% Ni60, 30% SiC powder has best properties with plasma spray welding, in which the micro-hardness can achieve 1100
HV, meanwhile can improve the thermal property of hot-forging die dramatically. |
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Keywords: | hot forging die plasma spraying plasma re-melting plasma spray welding thermo- physical properties |
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