کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
619456 1455037 2010 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The mechanisms of gross slip fretting wear on nickel oxide/Ti6Al4V mated surfaces
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
The mechanisms of gross slip fretting wear on nickel oxide/Ti6Al4V mated surfaces
چکیده انگلیسی

The objective of this work was to determine the mechanisms of tribofilm formation during the gross slip fretting wear of Ti6Al4V and a thick nickel oxide film. This was accomplished by conducting bench level fretting wear experiments on Ti6Al4V surfaces mated with ∼75 μm thick nickel oxide scale. The nickel oxide scale was grown by oxidizing commercially pure nickel at 1000 °C. The fretting wear experiments were conducted at room temperature, 150, 300, and 450 °C, with a stroke length of 250 μm, at oscillation speeds of 2 and 30 Hz, and an approximate Hertzian contact stress of 650 MPa. It has been shown that at elevated temperatures, lubricious nanocrystalline tribofilms were formed in the fretting wear contact via a tribo-sintering mechanism. These tribofilms formed as transfer layers on the mated Ti6Al4V interface, and reduced the friction and wear on the mated surface at elevated temperatures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 268, Issues 9–10, 25 March 2010, Pages 1195–1204
نویسندگان
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