کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4986834 | 1454958 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Development of white etching layers on rails: simulations and experiments
ترجمه فارسی عنوان
توسعه لایه های اچینگ سفید بر روی ریل: شبیه سازی ها و آزمایش ها
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
چکیده انگلیسی
White Etching Layers (WELs) on rails owe their name to the white appearance after etching with Nital. WEL is very often linked with rail defects like Squats and are said to partly consist of martensite, which indicates thermal effects. On this account, temperature simulations on and below the rail surface in the wheel-rail contact zone were done for a given set of parameters. The simulation results reveal that the austenitisation temperature of steel - necessary for the development of martensite - is reached under certain conditions. Validation tests on the full-scale wheel-rail test rig at voestalpine Schienen GmbH (Leoben / Austria) produced WELs and showed a good agreement with the simulation results. The presented and validated model can e.g. be used to enhance traction and braking control systems to reliably avoid the development of WELs in operation and to reduce according wheel-rail defects (e.g. Squats).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volumes 366â367, 15 November 2016, Pages 116-122
Journal: Wear - Volumes 366â367, 15 November 2016, Pages 116-122
نویسندگان
C. Bernsteiner, G. Müller, A. Meierhofer, K. Six, D. Künstner, P. Dietmaier,