کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
831100 1470363 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hot deformation behavior of an austenitic Fe–20Mn–3Si–3Al transformation induced plasticity steel
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Hot deformation behavior of an austenitic Fe–20Mn–3Si–3Al transformation induced plasticity steel
چکیده انگلیسی

Hot deformation behavior of an austenitic Fe–20Mn–3Si–3Al transformation induced plasticity (TRIP) steel was investigated by hot compression tests on Gleeble 3500D thermo-mechanical simulator in the temperature ranges of 900–1100 °C and the strain rate ranges of 0.01–10 s−1. The results show that the flow stress is sensitively dependent on deformation temperature and strain rate, and the flow stress increases with strain rate and decreases with deformation temperature. The peak stress during hot deformation can be predicted by the Zener–Hollomon (Z) parameter in the hyperbolic sine equation with the hot deformation activation energy Q of 387.84 kJ/mol. The dynamic recrystallization (DRX) is the most important softening mechanism for the experimental steel during hot compression. Furthermore, DRX procedure is strongly affected by Z parameter, and decreasing of Z value lead to more adequate proceeding of DRX.


► Hot deformation activation energy Q of Fe–20Mn–3Si–3Al steel is 387.84 kJ/mol.
► The peak stress of this steel can be accurately described by Z parameter.
► DRX is the main flow softening mechanism during hot deformation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 34, February 2012, Pages 713–718
نویسندگان
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