کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7979585 1514722 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Deformation nanotwins in coarse-grained aluminum alloy at ambient temperature and low strain rate
ترجمه فارسی عنوان
نانولوله های تغییر شکل در آلیاژ آلومینیوم درشت دانه در دمای محیط و میزان کم فشار
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
چکیده انگلیسی
In order to reveal the possible occurrence of deformation twins in coarse-grained aluminum/aluminum alloy at normal experimental conditions, a 5A02-O aluminum alloy with coarse grains was compressed quasi-statically to various plastic strains at ambient temperature, followed by high-resolution transmission electron analysis. The results revealed some long streaks produced by the thin plate-like structure with 2 atomic planes thick in the specimen undergoing a large strain, while under a relatively small plastic strain, the striped characteristics disappeared. The fast Fourier transform and theoretical analysis have shown that these long streaks are nanotwins, derived from the overlapping of stacking fault ribbons formed by Shockley partial dislocation on adjacent slip planes, which are triggered by the large plastic strain.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 621, 5 January 2015, Pages 272-276
نویسندگان
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