کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
619193 1455055 2008 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Unlubricated gross slip fretting wear of metallic plasma-sprayed coatings for Ti6Al4V surfaces
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Unlubricated gross slip fretting wear of metallic plasma-sprayed coatings for Ti6Al4V surfaces
چکیده انگلیسی
Plasma-sprayed Al-bronze or CuNiIn coatings are often applied to protect against fretting wear and extend the operational life of Ti-alloy compressor blades in turbine engines. In order to develop a fundamental understanding of how these coating systems perform under gross slip fretting conditions, bench level fretting wear tests were conducted at room temperature to simulate cold engine startup. Alternative coatings such as plasma-sprayed molybdenum and nickel were also evaluated because of their potential for reducing fretting wear under certain simulated engine conditions. The combination of scanning electron microscopy (SEM), surface profilometry, surface chemistry (EDS), and friction analysis were used to study coating performance and evaluate the interfacial wear mechanisms. In this study, it was determined that all coatings caused significant damage to the mating Ti6Al4V surfaces and that the wear mechanisms were all similar to those of the uncoated baseline case.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 265, Issues 3–4, 31 July 2008, Pages 439-451
نویسندگان
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