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, Vol. 27

Issue (1): 31-34 DOI:

Research Report

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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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[1]	ZHANG Rui,LI Yu,GUAN Lei,WANG Guan,WANG Fuyu. Effect of Heat Treatment on Electrochemical Corrosion Behavior of Selective Laser Melted Ti6Al4V Alloy[J]. 中国腐蚀与防护学报, 2019, 39(6): 588-594.
[2]	CHEN Qian, XIN Li, TENG Yingyuan, ZHU Shenglong, WANG Fuhui. EFFECT OF NITRIDE COATINGS ON THE CYCLIC OXIDATION BEHAVIOR OF TI6AL4V ALLOY[J]. 中国腐蚀与防护学报, 2012, 32(1): 7-12.

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