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首页> 外文期刊>Materialpruefung: Werkstoffe und Bauteile, Forschung Prufung Anwendung >Tribological behavior of a hydrostatically extruded ultra-fine grained Ti-13Nb-13Zr alloy
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Tribological behavior of a hydrostatically extruded ultra-fine grained Ti-13Nb-13Zr alloy

机译：腐肥挤出的超细颗粒Ti-13NB-13ZR合金的摩擦学行为

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摘要

This contribution summarizes the results an investigation of the wear resistance of as received initial state and nano-structured Ti-13Nb-13Zr alloy obtained by hydrostatic extrusion. The tribological behavior was examined using a ball-on-disc tribometer under unlubricated sliding contact conditions against an Al2O3 ceramic ball. Friction coefficient, material transfer and wear debris of the samples were observed after the wear tests. Wear characteristics of the samples were investigated by means of an optical profilometer, mechanical profilometer and scanning electron microscope for wear debris morphology and wear tracks. Although friction coefficients are very similar according to tribological observations, the domestic distribution of wear characteristics varied for samples of various grain sizes. Morphological observations have shown that surface responses to abrasive ceramic balls involve localized long and short wear debris, fracture, surface plowing causing adhesive wear and the formation of larger surface debris, and material transfer between titanium and the ceramic counterpart.
机译：该贡献总结了通过静压挤出获得的接收初始状态和纳米结构Ti-13NB-13ZR合金的耐磨性的研究。在针对AL2O3陶瓷球的非润滑滑动接触条件下使用球形盘摩擦计检查摩擦学行为。在磨损试验后观察样品的摩擦系数，材料转移和磨损碎片。通过光学轮廓仪，机械平轮仪和扫描电子显微镜来研究样品的磨损特性，用于磨损碎片形态和磨损轨道。虽然根据摩擦学观察，摩擦系数非常相似，但是各种晶粒尺寸的样本的磨损特性的国内分布变化。形态学观察表明，对磨蚀性陶瓷球的表面响应涉及局部长而短的磨损碎片，断裂，表面犁，导致粘合剂磨损和形成较大的表面碎片，以及钛和陶瓷对应物之间的材料转移。

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