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Effect of Tungsten Carbide Dissolution on ErosionWear Resistance in WC/Ni Composite Layer

Year: 1400
COI: INCWI22_132
Language: EnglishView: 84
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A Abyazi - Assistant professor, Azarbaijan Shahid Madani University, Iran
M. Takht Kiyani - MSc student, Amirkabir University of Technology, Iran
K Rahmani - BSc student, Azarbaijan Shahid Madani University, Iran


In the present study, the effect of dissolution of tungsten carbide (WC) particles on the erosion wear resistance of hard coatings created by oxy-acetylene welding process had been investigated. Higher preheating temperature was shown to dissolve tungsten carbide (WC) reinforcing particles and eliminate their high erosion wear resistance. Also, the results of x-ray diffraction clearly showed a significant reduction in the amount of tungsten carbide and the formation of brittle W۲C phases resulting from its dissolution. The hardness of the coating (about ۹۰۰ Hv) was obtained in preheated specimen at the suitable temperature compared to preheated specimens at higher temperatures (about ۱۳۰۰ Hv). Excessive dissolution of tungsten carbide particles along with the formation of brittle W۲C phase due to unfavorable preheating conditions led to a significant reduction (۶۸%) in erosion wear resistance.


Dissolution of WC particles , WC powder particles , W۲C brittle phase formation , Erosion wear.

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Abyazi, A and Takht Kiyani, M. and Rahmani, K,1400,Effect of Tungsten Carbide Dissolution on ErosionWear Resistance in WC/Ni Composite Layer,4th International Conference on Welding and Non Destructive Testing & 22nd National Conference on Welding & Inspection & 11th National Conference on NDT,Isfahan,

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