کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7981560 | 1514747 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Controlling the microstructure of magnesium alloy sheet during rolling
ترجمه فارسی عنوان
کنترل ریزساختار صفحات آلیاژ منیزیم در طول نورد
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کلمات کلیدی
آلیاژ منیزیم، بافت پایه، دوقلو، رولینگ، ورق تشکیل
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
A hot rolled magnesium alloy sheet embedded in a steel block was rolled together with 3% thickness reduction at room temperature, 373Â K, and 673Â K. Tensile twins were observed after the rolling, which could not be found when the magnesium alloy sheet was rolled without the steel block. The twin fraction was the highest at 373Â K because of thermal expansion and activating non-basal slip systems at high temperature. Electron back-scattered diffraction analysis and finite element simulations confirmed that the steel block with higher strength played an important role in generating compressive stress along the transverse direction in the magnesium alloy sheet. The compressive stress could increase owing to suppression of thermal expansion in the magnesium alloy sheet at 373Â K. The yield stress and the tensile stress became higher in the rolled specimen with the steel block at 373Â K than in the specimen without it owing to grain refinement caused by tensile twins.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 596, 24 February 2014, Pages 216-221
Journal: Materials Science and Engineering: A - Volume 596, 24 February 2014, Pages 216-221
نویسندگان
Se-Jong Kim, Chang Dong Yim, Young-Seon Lee, Jong-Hun Yoon, Jung Hwan Lee,