表面成分分析表明，氧化和离子注入后，表面形成钛氧化物，使合金的耐腐蚀性得到明显的改善。
The surface component analysis showed the titanium oxidation was formed on NiTi alloy surface after oxidation and ion implantation.
相分析表明，离子注入使WC晶面间距增大，稀土元素Y的注入在材料表面形成了Y的氧化物膜层。
Phase analysis shows that the distance of crystal face of WC increases and oxide film of Y forms on the surface by Y ion implantation.
离子注入中，添加稀土元素能形成致密的氧化物，可提高模具的抗高温氧化能力；
In diffusing implantation, the main effects of RE elements are increasing speed and microalloying.
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