کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9679445 | 1455081 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dry sliding wear behaviour of some wrought, rapidly solidified powder metallurgy aluminium alloys
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
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چکیده انگلیسی
Aluminium alloys are increasingly being used in tribological applications, often in composite form, but to date no systematic work has been undertaken on optimising the matrix composition. In particular, it is not clear whether a work-hardened, a precipitation-hardened or dispersion-hardened matrix is optimum. Accordingly, the dry sliding wear behaviour of four aluminium alloys (A2124, A6092 (both precipitation-hardened), A3004 (dispersion-hardened) and A5056 (work-hardened)) was investigated against an M2 steel counterface in the load range 23-140Â N and at a fixed sliding speed of 1Â m/s. Severe wear was observed for all alloys, with specific wear rates (Kâ²) in the range 0.31Â ÃÂ 10â4 to 4.23Â ÃÂ 10â4Â mm3/(NÂ m). Wear was dominated by transfer of Fe from the counterface for all alloys, which resulted in the formation of a mechanically mixed layer (MML). The relationship between alloy composition, deformation below worn surface and wear resistance is discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 259, Issues 1â6, JulyâAugust 2005, Pages 490-500
Journal: Wear - Volume 259, Issues 1â6, JulyâAugust 2005, Pages 490-500
نویسندگان
M.J. Ghazali, W.M. Rainforth, H. Jones,