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J Chin Soc Corr Pro  2003, Vol. 23 Issue (5): 307-311     DOI:
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MICROSTRUCTURE AND CORROSION WEAR PERFORMANCE OF ALLOY LAYERS OF OXY-ACETYLENE FLAME AND PLASMA ARC SPRAYING WELDING
Xiaomin Yuan;Songhua Si;Yizhu He
安徽工业大学冶金与材料学院
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Abstract  Microstructure,phase constitution,hardness and corr osion wear test of the different corrosion media of Fe-base self-fluxing alloy layers (HFe55 and DFe55) and Ni-base layers(HNi60 and DNi60) by oxy-acetylene f lame and plasma arc had been studied on the 16Mn steel substrate.Results show th at the microstructure of the layers all have characteristic of dendrites,and the layers are consisted of γ dendritic solid solution and fine eutectic structure between the dendrites.The dendrite of Fe-base layers is flourishing,but Ni-bas e layer is finer.The higher the hardness of the layers,the better the corrosion wear resistance of the layers.The order of the hardness and wear resistance from high to low is HNi60,DFe55,DNi60 and HFe55.The corrosion wear resistance of the layers in 4%HCl (pH6) and 4%NaOH (pH8) liquid media is lower than that in water,especially in 4%HCl acid media.
Key words:  oxy-acetylene flame spraying welding      plasma arc sprayi ng welding      microstructure      hardness      corrosion      
Received:  29 July 2002     
ZTFLH:  TG174.442  
Corresponding Authors:  Songhua Si   

Cite this article: 

Xiaomin Yuan; Songhua Si; Yizhu He. MICROSTRUCTURE AND CORROSION WEAR PERFORMANCE OF ALLOY LAYERS OF OXY-ACETYLENE FLAME AND PLASMA ARC SPRAYING WELDING. J Chin Soc Corr Pro, 2003, 23(5): 307-311 .

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https://www.jcscp.org/EN/     OR     https://www.jcscp.org/EN/Y2003/V23/I5/307

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