کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7969427 1514350 2018 32 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of annealing temperature on microstructure and tensile property of cold-rolled Fe-0.2C-11Mn-6Al steel
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Influence of annealing temperature on microstructure and tensile property of cold-rolled Fe-0.2C-11Mn-6Al steel
چکیده انگلیسی
To fully realize the potential of austenite characterized by strip-like and equiaxed structure and enhance the comprehensive mechanical properties of medium-Mn steel, the as-hot-rolled Fe-0.2C-11Mn-6Al steel was subjected to cold roll annealing to refine the grain size. The ultimate tensile strength of the cold-rolled steel annealed at 650 °C was significantly enhanced, while the total elongation was markedly decreased. The variation in tensile properties of the annealed cold-rolled steel was due to weakening of transformation induced plasticity (TRIP) effect and enhanced twinning induced plasticity (TWIP) effect with increase in quenching temperature. Furthermore, austenite had two different morphologies, strip-like and granular. Though the grain size of granular austenite increased with increased annealing temperature, the austenite stability increased with increase in quenching temperature, which is contrary to the expectations. This is attributed to refinement of large austenite strips induced by recrystallization.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 137, March 2018, Pages 256-262
نویسندگان
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