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中文摘要：
在高速销-盘式摩擦磨损试验机上考察了Ti6A14V销与GCr15钢盘摩擦副的干滑动摩擦磨损行为，并在线测量了销试样的摩擦接触温度，利用扫描电子显微镜、X射线衍射仪及透射电子显微镜分别对Ti6A14V摩擦表面和次表层的微观形貌、组织成分、相结构进行研究．结果表明：Ti6A14V的卢相变点温度接近其摩擦系数和磨损率的转折温度；随着摩擦表面温度升高，在Ti6A14V表面依次形成TiO、TiO2和V2O3；温度骤变促使Ti6A14V表层析出纳米颗粒，高的摩擦温度使空气中的氮渗入表层而形成VN．上述结果共同对Ti6A14V／GCr15摩擦副的摩擦磨损行为产生影响．
英文摘要：
Friction and wear behaviors of Ti6A14V alloys against GCrl5 steel under dry sliding were investigated on high-speed pin-on-disc tribometer. Contact temperatures due to friction heat were measured by a thermocouple inserted into the hole of the Ti6A14V pins. Morphology, composition and phase structure of the surface and subsurface for Ti6A14V were examined by means of scanning electron microscopy （SEM）, X-ray diffraction and transmission electron microscopy （TEM）. Results show that the temperature of β phase transformation is close to that of turning point of friction coefficient and wear rate. TiO, TiO2 and V2O3 are formed in proper order on the surfaces of Ti6A14V alloys as the friction temperature increases. TEM analysis denotes that the nano-particles are separated out on the subsurface of Ti6A14V alloys because of the rapidly temperature variation. The high friction temperature impels nitrogen in air to filter into the subsurface to form VN. Formation of VN affects the tribological behavior of Ti6A14V alloy sliding against C, Cr15.
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