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分别采用辉光等离子冶金技术以及PVD沉积Pd膜层结合热扩散法在钛表面制备出了Ti-Pd合金层,用XRD、SEM和EDS研究合金层的相组成、微观组织和元素分布。并对Ti-Pd合金层的耐蚀性进行了研究。结果表明,两种方法制备的Ti-Pd合金层均可极大地提高钛基体在室温静态环境下耐强还原酸腐蚀的性能,其耐蚀性比纯钛提升了两个数量级。
The Ti-Pd alloy layer was prepared on the surface of titanium by glow plasma metallurgy and Pd-deposited PVD film combined with thermal diffusion method respectively. The phase composition, microstructure and elemental distribution of the alloy layer were studied by XRD, SEM and EDS. The corrosion resistance of Ti-Pd alloy layer was also studied. The results show that the Ti-Pd alloy prepared by the two methods can greatly improve the corrosion resistance of the titanium matrix under the static environment at room temperature and its corrosion resistance is two orders of magnitude higher than pure titanium.