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J Chin Soc Corr Pro  2007, Vol. 27 Issue (1): 31-34     DOI:
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Study on Structure and Corrosiion Behavior of Mo Diffusion Layers on Ti-6Al-4V Alloy with Plasma Surface Alloying Technique
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太原理工大学
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Abstract  The Mo surface modified layer on Ti6Al4V substrate was obtained by the plasma surface alloying technique.The structure and composition of the Mo surface modified layer were investigated by X-ray diffraction (XRD) and glow discharge optical emission spectroscopy (GDOES).The duplex Mo modified layer contains a pure Mo coating on subsurface and diffusion layers between the subsurface and substrate.The X- ray diffraction analysis of the Mo modified layer reveals that a Mo phase exists in the modified layer with〈110〉and 〈211〉orientations in the subsurface.The electrochemical corrosion behavior in 0.5 mol/L HCl solution of the Mo modified layer was investigated and compared with that of Ti6Al4V substrate material.The chemical corrosion behavior in boiling 37% HCl solution of the Mo modified layer was investigated and compared with that of Ti6Al4V substrate material.Results indicate that self-corroding electric potentials and corrosion rate of the Mo modified layer are higher than those of Ti6Al4V substrate in 0.5 mol/L HCl solution.Corrosion rate of the Mo modified layer is lower than that of Ti6Al4V substrate material in 37% HCl.
Key words:  Ti6Al4V      Mo modified layer      corrosion behaviors      
Received:  12 August 2005     
ZTFLH:  TG115.22  
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. Study on Structure and Corrosiion Behavior of Mo Diffusion Layers on Ti-6Al-4V Alloy with Plasma Surface Alloying Technique. J Chin Soc Corr Pro, 2007, 27(1): 31-34 .

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https://www.jcscp.org/EN/     OR     https://www.jcscp.org/EN/Y2007/V27/I1/31

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