离子注入金属表面,可以产生耐高温的合金层,选择适当的元素注入到金属表面,能降低表面的氧化速率。李铁蕃、银跃德等人分别探讨了稀土元素Y,Ce在Fe-Cr-Al及其它合金高温氧化中的作用机理,指出这些元素及其氧化物不但使金属氧化率显著降低,而且能增强表面氧化层的附着力,防止氧化膜裂开,甚至在热循环中这些膜层也不易剥落,以致保护了合金内部表面免遭氧化。Bennett等人研究了Y,Ce对材料 Ion implantation metal surface, can produce high temperature alloy layer, select the appropriate elements injected into the metal surface, can reduce the surface oxidation rate. Li Tiefan and Yin Yuede et al. Respectively discussed the mechanism of rare earth elements Y and Ce in high temperature oxidation of Fe-Cr-Al and other alloys. It is pointed out that these elements and oxides not only significantly reduce the metal oxidation rate, but also enhance the surface The adhesion of the oxide layer prevents the oxide film from cracking, and these films do not peel even easily during thermal cycling, so that the internal surface of the alloy is protected from oxidation. Bennett et al. Studied Y, Ce versus material