کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1580222 | 1514844 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermally activated dislocation depinning at a grain boundary in nanocrystalline and ultrafine-grained materials
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Thermally activated dislocation depinning at a grain boundary in nanocrystalline and ultrafine-grained materials Thermally activated dislocation depinning at a grain boundary in nanocrystalline and ultrafine-grained materials](/preview/png/1580222.png)
چکیده انگلیسی
As an attempt to understand the temperature and strain-rate dependence of strength in nanocrystalline and ultrafine-grained materials, thermally activated depinning process has been incorporated into a dislocation bow-out model from a grain boundary. Such quantities as activation energy, activation volume, strain-rate sensitivity and yield strength are discussed and compared with experimental results available in literature. It is found that the present model analysis can reasonably explain the observed characteristics of these quantities.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 516, Issues 1â2, 15 August 2009, Pages 276-282
Journal: Materials Science and Engineering: A - Volume 516, Issues 1â2, 15 August 2009, Pages 276-282
نویسندگان
Masaharu Kato,