کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
618534 | 1455042 | 2009 | 12 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The use of nickel graphite composite coatings for the mitigation of gross slip fretting wear on Ti6Al4V interfaces The use of nickel graphite composite coatings for the mitigation of gross slip fretting wear on Ti6Al4V interfaces](/preview/png/618534.png)
In metallic contacts, surface oxides, adhesion, and material transfer play a primary role in the initial stages of fretting wear degradation. Given this behavior, the focus of this study was to mitigate fretting wear within Ti6Al4V contacts at room temperature and 450 °C with the use of thermally sprayed nickel graphite composite coatings with 5–20% graphite. The results show that the embedded graphite particles reduced the friction of the nickel thermal sprayed coatings during both low and high temperature fretting wear experiments. Friction and wear mechanisms are discussed with correlations of contact chemistry, morphology, and mechanical performance. Wear on the mated Ti6Al4V surfaces was reduced by the formation of uniform transfer films that were identified as graphitic based at room temperature and NiO based at 450 °C.
Journal: Wear - Volume 267, Issues 9–10, 9 September 2009, Pages 1470–1481