Wear Resistance and Corrosion Resistance of W-Mo Co-penetrated Layer on Pure Titanium by Glow Discharge
The treatment of W-Mo Co-penetrated is applied on pure titanium by the technology of equipotential hollow cathode glow discharge.The morphology, distribution of composition, phase composition and hardness of the sample are analyzed by the scanning electron microscope(SEM), the energy dispersive spectrometer(EDS), the X-ray diffraction(XRD) and the microhardnss instrument, respectively.The tribology capability of the sample is studied by the friction and wear tester;the corrosion resistance of the W-Mo Co-penetrated layer in 3.5% NaCl solution is studied under the normal temperature static condition by using the electrochemical workstation.The results have shown that the tight W-Mo Co-penetrated layer is formed on the pure titanium surface by the treatment of glow discharge, and the maximum thickness of the modified layer is 16.6 μm, and the maximum hardness is 1196 HV0.1 , which is 6.85 times that of the matrix.The phase composition of W-Mo Co-penetrated layer is W, Mo, MoTi, TixW1-x.Due to the improved surface hardness, the wear resistance on the surface of the sample is increased significantly, and the minimum friction coefficient is only 0.23, which is obviously decreased than 0.516 that of the original sample.The minimum annual corrosion rate of the samples is 0.0016 mm/a, which is 1/230 of the original sample, so the corrosion resistance is obviously improved.
commercial pure titanium glow discharge W-Mo co-penetrated layer wear resistance corrosion resistance
ZHAO Yun ZENG Yun LIU Weiguang CHEN Fei ZHOU Hai
College of Materials Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100
国际会议
北京
英文
246-251
2014-10-11（万方平台首次上网日期，不代表论文的发表时间）