Abstract Electron beam powder bed fusion (EBPBF) is a beneficial processing route to fabricate Ti6Al4V alloy for aerospace applications due to its relatively low lead time and the possibility of topology optimization. The dry sliding wear behavior of EBPBF-Ti6Al4V against steel- and alumina-counterballs from room temperature (RT) to 500 °C was investigated to evaluate the influence of EBPBF processing and microstructure on the wear properties for broadening the application criteria of this lightweight alloy. The wear tests revealed that the wear rate decreased with increasing temperature due to formation of stable oxide glaze layer. This study reveals elevated temperature sliding wear behavior, wear mechanisms and microstructural changes below the wear track of EBPBF Ti6Al4V alloy against steel and alumina counterbodies.

中文翻译：

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电子束粉末床熔融制备Ti6Al4V高温摩擦学性能

摘要 电子束粉末床融合 (EBPBF) 是制造用于航空航天应用的 Ti6Al4V 合金的有利加工途径，因为它具有相对较短的交货时间和拓扑优化的可能性。研究了 EBPBF-Ti6Al4V 在室温 (RT) 至 500 °C 对钢和氧化铝平衡球的干滑动磨损行为，以评估 EBPBF 加工和微观结构对磨损性能的影响，以拓宽这种轻质合金的应用标准. 磨损试验表明，由于形成稳定的氧化釉层，磨损率随温度升高而降低。该研究揭示了 EBPBF Ti6Al4V 合金对钢和氧化铝配对体的磨损轨迹下方的高温滑动磨损行为、磨损机制和微观结构变化。