采用熔盐法(Na2B4O7)对钛(TA2)表面进行渗硼实验.通过扫描电镜(SEM)、能谱(EDS)、X射线衍射(XRD)、显微硬度测试等分析手段,研究TA2渗硼后的物相组成、组织形貌、显微硬度.结果表明:渗层由外表层的TiB2和内表层晶须状的TiB组成.XRD分析表明,渗硼后钛试样表面生成硼钛化合物,随保温时间的延长,TiB峰位变强.EDS分析得出,B原子扩散后,被基体钛吸附,形成过渡层,导致过渡层中的Ti含量减少,而B含量明显升高.渗硼层显微硬度由外层至内层逐渐减小,变化范围约为23000MPa～7500MPa,高于TA2基体的硬度.
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