کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
619775 | 1455078 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structure and mechanical properties of tribologically induced nanolayers
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Structure and mechanical properties of tribologically induced nanolayers Structure and mechanical properties of tribologically induced nanolayers](/preview/png/619775.png)
چکیده انگلیسی
Ultra low wear rates are common for lubricated state-of-the-art mechanical devices used in machines and cars. The main paths of energy dissipation are heat and wear generation as well as a significant change of near-surface material within the range of a few hundred nanometers. Due to mechanical intermixing at the asperity level the involved materials change with respect to chemical composition, morphology and mechanical properties. By means of focused ion beam analysis the morphology of the near-surface material of tribologically stressed and unstressed samples was investigated. In addition, nanoindentation was applied to characterize the mechanical properties. In the presented study mechanical intermixing leads to nanocrystalline material which is softer than bulk material. Depending on the level of tribological stressing, the modified material exhibits smaller energy dissipation, thus lower friction and wear.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 260, Issues 4â5, 24 February 2006, Pages 433-437
Journal: Wear - Volume 260, Issues 4â5, 24 February 2006, Pages 433-437
نویسندگان
D. Shakhvorostov, K. Pöhlmann, M. Scherge,