کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9796468 | 1514947 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of coarse second-phase particles and fine precipitates on microstructure refinement and mechanical properties of severely deformed Al alloy
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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: The effect of coarse second-phase particles and fine precipitates on microstructure refinement and mechanical properties of severely deformed Al alloy The effect of coarse second-phase particles and fine precipitates on microstructure refinement and mechanical properties of severely deformed Al alloy](/preview/png/9796468.png)
چکیده انگلیسی
The sub-micrometer microstructure developed during severe plastic deformation by equal channel angular pressing in an Al alloy containing a small amount of dispersed intermetallic particles has been examined in material in a variety of solutionised and precipitated states. Microstructural refinement, and corresponding strengthening, occurs faster in these particle-containing materials than in particle-free equivalents. Coarse precipitate and dispersoid particles remain mostly unaffected by the severe deformation, and appear to help stabilise a finer deformation microstructure, while fine precipitates are sheared and apparently dissolved. The extent of microstructural refinement and strengthening depends more on solute content than on particle distributions. The limited effect of dispersoid and precipitate particles may be due, in part, to their presence in only small volume fractions, less than 1% by volume each. Strengthening depends more on dislocation arrangements and densities than on the number of boundaries present.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 394, Issues 1â2, 15 March 2005, Pages 399-410
Journal: Materials Science and Engineering: A - Volume 394, Issues 1â2, 15 March 2005, Pages 399-410
نویسندگان
I. Gutierrez-Urrutia, M.A. Muñoz-Morris, D.G. Morris,