کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
801221 | 1467824 | 2008 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Physical mesomechanics of crystal structure refinement upon severe plastic deformation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
A mechanism of crystal structure refinement in solids subjected to severe plastic deformation is proposed in the framework of a multiscale approach adopted in physical mesomechanics and nonequilibrium thermodynamics. The basis of the mechanism observed in nanostructuring of metallic materials is fragmentation of bent band structures comprising subbands of a base material and a defect one. As the crystal subbands are fragmented the subbands of the defect phase occupy the interfaces between the fragments. “Chessboard-like” distribution of normal and tangential tensile and compressive stresses at the interface between the base and defect material plays an important role in this process. A lower limit to initial crystal structure refinement for different severe plastic deformation techniques is examined.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physical Mesomechanics - Volume 11, Issues 5â6, SeptemberâDecember 2008, Pages 203-212
Journal: Physical Mesomechanics - Volume 11, Issues 5â6, SeptemberâDecember 2008, Pages 203-212
نویسندگان
V.E. Panin, V.E. Egorushkin,