کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5456448 1514661 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tensile behaviors and deformation mechanism of a medium Mn-TRIP steel at different temperatures
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Tensile behaviors and deformation mechanism of a medium Mn-TRIP steel at different temperatures
چکیده انگلیسی
We investigated the effect of deformation temperature and gain size on the tensile behaviors of a new medium Mn-TRIP steel processed by batch and continuous annealing. It was found that the tensile strength decreased when the testing temperature increased from −20 to 300 °C. The total elongation firstly increased, reaching the maximum at 25-100 °C, and then decreased when the temperature was higher than 100 °C. The results can be explained by (i) the influence of temperature on chemical driving force for martensitic transformation and (ii) the grain size effect on the stability of austenite. To achieve optimal mechanical properties, the stability of austenite should be tailored so that the transformation-induced plasticity effect occurs under continuous deformation. Also, ferrite should have appropriate grain sizes so that work hardening of ferrite can coordinate the deformation of austenite.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 682, 13 January 2017, Pages 698-703
نویسندگان
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