کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1582369 | 1514873 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Analysis of thermo-mechanical process occurred in magnesium alloy AZ31 sheet during differential speed rolling
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Rolling is an effective method used to impose a large amount of plastic deformation to metallic materials in a form of sheet. As the plastic deformation increases at appropriate temperatures, the grains become smaller in size and the mechanical properties of the sheet are improved. A recent study found that the grains of magnesium alloy AZ31 sheets are recrystallized and reduced to 3 μm in diameter by a differential speed rolling at an elevated temperature. The present study analyzed the thermo-mechanical processes occurring in the sheet during differential speed rolling by the rigid-thermoviscoplastic finite element method. Findings include a significant increase of plastic deformation by severe shear deformation, a notable increase of temperature by plastic deformation as well as by friction, and an incredible decrease of rolling force by low hydrostatic stress in magnitude at the deformation zone.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 485, Issues 1â2, 25 June 2008, Pages 299-304
Journal: Materials Science and Engineering: A - Volume 485, Issues 1â2, 25 June 2008, Pages 299-304
نویسندگان
Y.H. Ji, J.J. Park,