کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
616407 | 881490 | 2009 | 12 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The effect of temperature on gross slip fretting wear of cold-sprayed nickel coatings on Ti6Al4V interfaces The effect of temperature on gross slip fretting wear of cold-sprayed nickel coatings on Ti6Al4V interfaces](/preview/png/616407.png)
Fretting wear is an accumulation of damage that occurs at component interfaces that are subjected to high contact stresses coupled with low-amplitude oscillation. In metallic contacts, surface oxides, adhesion, and material transfer play a primary role in the initial stages of fretting wear degradation. Given these behaviors, the focus of this study was to determine the effect of temperature on inter-metallic fretting wear between Ti6Al4V (titanium, 6% aluminum, 4% vanadium) and cold-sprayed, commercially pure nickel coatings. The results presented herein show that increased temperature decreases friction through the formation of a uniform NiO layer, and by a reduction of Ni2O3 in contacts. In addition, it was found that a localized minimum friction coefficient is achieved at approximately 300 °C, above which friction increases slightly due to annealing of the cold-sprayed coatings.
Journal: Tribology International - Volume 42, Issue 3, March 2009, Pages 491–502