کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1448186 988667 2009 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Strength characterization of Al/Si interfaces: A hybrid method of nanoindentation and finite element analysis
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Strength characterization of Al/Si interfaces: A hybrid method of nanoindentation and finite element analysis
چکیده انگلیسی

A novel hybrid method of nanoindentation and finite element analysis is used to characterize the silicon particle indentation strength and the mechanical properties of Al/Si interfaces in an aluminum matrix composite. The indentation threshold strength is found to be strongly dependent on the aspect ratio, up to 2, of the buried portion of cylindrically shaped particles. The indentation resistance comes from the plastic-flow strength of the matrix and the slip strength of the interface. The interface slips during loading and opens up during unloading. An element-size-dependent finite element cohesive-zone law is used to extract the interface properties; the results compare well with atomistic estimations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 57, Issue 3, February 2009, Pages 695–707
نویسندگان
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