کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1639583 1517043 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Shear deformation and grain refinement in pure Al by asymmetric rolling
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Shear deformation and grain refinement in pure Al by asymmetric rolling
چکیده انگلیسی

Asymmetric rolling(ASR), as one of severe plastic deformation(SPD) methods, was widely used to make ultra-fined materials with enhanced performance. Internal marks were used to show the shear deformation during asymmetric rolling with pure aluminium as a model material. Effects of reduction ratio and mismatch ratio on the shear deformation were studied. With the observed shear deformation results, equivalent strain was calculated. For lager shear deformation, rolling equipment was modified to increase friction between specimen and the rollers. Consequently, extremely fine grains with size of 500 nm are obtained in pure aluminium. With improved asymmetric rolling, the ability of grain refinement of ASR is greatly improved.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 18, Issue 4, August 2008, Pages 774-777