کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4986526 | 1454949 | 2017 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of lubricant formulation on rolling contact fatigue of gears - interaction of lubricant additives with fatigue cracks
ترجمه فارسی عنوان
تأثیر فرمولاسیون روغن در خستگی نورد دنده ها - تعامل افزودنی های روان کننده با ترک های خستگی
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
چکیده انگلیسی
The influence of lubricant additives on rolling contact fatigue crack propagation and the mechanisms responsible for the resulting micro-scale damage, was studied via experiments conducted on complete transmissions in a test cell. Bench-scale tribological tests and the exposure of steel surfaces to two different formulated lubricants were also carried out. Scanning and Transmission Electronic Microscopy observations, Electron Dispersive Energy and X-ray Photoelectron Spectroscopy analyses indicated that the sulphur present in the extreme pressure (EP) additives has a positive impact on limiting damage propagation. Thanks to TEM observations of cracks, it was demonstrated that a sulphur rich film is formed at the crack tip. This film can act as both a barrier film towards hydrogen permeation within the metal and / or as an inhibitor of oil decomposition. The latter is associated with the nascent surface's ability to limit hydrogen generation. Without such hydrogen embrittlement, crack propagation is slowed down.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volumes 382â383, 15 July 2017, Pages 113-122
Journal: Wear - Volumes 382â383, 15 July 2017, Pages 113-122
نویسندگان
Benoit L'Hostis, Clotilde Minfray, Marion Frégonèse, Catherine Verdu, Benoit Ter-Ovanessian, Béatrice Vacher, Thierry Le Mogne, Frédéric Jarnias, Alder Da-Costa D'Ambros,