针对钛齿表面的氧化渗透问题,配制新型涂料,用熔模铸造法原位制取钛片试样模拟钛齿生产过程.利用能谱(EDX)和X射线衍射(XRD)分析钛片的化学组成和物相,普通金相显微镜观察显微组织.结果表明,配制的新型涂料能将钛片表面氧化渗透层的厚度降至50 μm左右,钛片的渗入元素为钨和钇.显微硬度分析表明,钨的渗入恶化了钛片的机械性能和使用性能,在蜡模表面均匀涂敷涂料可消除钇的渗入.钛片表面的氧化渗透是由铸造过程中熔钛与涂料在界面处发生冶金反应的结果.
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