Characterisation of fretting-induced wear debris for Ti-6Al-4 V
Characterisation of fretting-induced wear debris for Ti-6Al-4 V
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DOI：
10.1016/j.wear.2008.12.032
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发表时间：
2009-06-15
期刊：
影响因子：
5
通讯作者：
Williams, E. J.
中科院分区：
文献类型：
--
作者：
Everitt, N. M.;Ding, J.;Williams, E. J.
目前的工作涉及微动磨损预测方法的开发，其中考虑了微动磨损碎片的影响。在微动过程中，碎屑会产生并积聚在接触区域内，从而减少接触体之间的金属接触。本文介绍了纳米压痕技术的成功应用，用于测量碎片层和紧邻碎片层下方的合金的机械特性，这些特性是在 Ti-6Al-4V 上进行的圆柱体平面微动磨损试验中产生的。测试程序涉及在不同的正常负载、冲程和循环次数下进行测试，以捕获碎片层几何形状的演变以及机械特性。使用光学和扫描电子显微镜通过横截面对微动疤痕进行测试后检查表明，碎片以氧化致密层结构的形式存在。开发了扫描电子显微镜技术来表征碎片层厚度分布随循环次数的变化。 (C) 2009 Elsevier B.V. 保留所有权利。
The present work is related to the development of predictive methods for fretting wear which incorporate the effects of fretting wear debris. During the fretting process, debris is produced and accumulated within the contact region, reducing metallic contact between the contacting bodies. This paper describes the successful application of a nano-indentation technique to measure the mechanical characteristics of the debris layer and the alloy immediately below the debris layer, as produced from cylinder-on-flat fretting wear tests on Ti-6Al-4V. The test programme involved testing at different normal loads, strokes and numbers of cycles, to capture the evolution of the debris layer geometry, as well as the mechanical characteristics. Post-test examination of the fretting scars through the cross-section using optical and scanning electron microscopy suggests that the debris exists as an oxidised compacted layer structure. A scanning electron microscopy technique was developed to characterise the evolution of debris layer thickness distribution with numbers of cycles. (C) 2009 Elsevier B.V. All rights reserved.