کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1500389 993345 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Higher fatigue cracking resistance of twin boundaries than grain boundaries in Cu bicrystals
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Higher fatigue cracking resistance of twin boundaries than grain boundaries in Cu bicrystals
چکیده انگلیسی

Two kinds of Cu bicrystals, with a high-energy grain boundary (GB) and a coherent twin boundary (TB) parallel to the loading direction respectively, were cyclically deformed to reveal the fatigue cracking mechanisms. It is shown that intergranular fatigue cracking occurred firstly in the bicrystal with the GB, while the persistent slip bands became the preferential cracking sites in the bicrystal with TB. These results indicate that the TB has an intrinsically higher fatigue cracking resistance than the GB.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 65, Issue 6, September 2011, Pages 505–508
نویسندگان
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