کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1501729 993393 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
New model for strengthening by dislocation nucleation in nanoscale in situ composite microwires
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
New model for strengthening by dislocation nucleation in nanoscale in situ composite microwires
چکیده انگلیسی
In situ fibre-reinforced composites are prepared by very heavy straining that elongates the minor phase into very fine ribbons, producing materials of extremely high strength. Strengthening is usually explained by the many geometrically necessary dislocations or by pile-ups produced at the many interfaces. It is shown here by transmission electron microscopy that nanoscale ribbons become dislocation-free and the matrix too fine to accommodate dislocation substructures. A modified strengthening model is proposed based on ribbons having the ideal strength in the substructure-free matrix.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 59, Issue 8, October 2008, Pages 838-841
نویسندگان
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