کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1578722 1514820 2011 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Texture evolution of cold rolled and annealed Fe–24Mn–3Al–2Si–1Ni–0.06C TWIP steel
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Texture evolution of cold rolled and annealed Fe–24Mn–3Al–2Si–1Ni–0.06C TWIP steel
چکیده انگلیسی

The microstructure and texture evolution of 42% cold-rolled Fe–24Mn–3Al–2Si–1Ni–0.06C TWinning Induced Plasticity (TWIP) steel is investigated during isochronal annealing at temperatures between 600 and 850 °C. In the cold rolled condition, bulk texture returned the distinctive α-fibre for low stacking fault energy materials, with higher intensities for Goss ({1 1 2}〈 0 1 1 〉) compared to Brass ({1 1 1}〈 1 1 2 〉). A comparison between bulk and micro-textures, showed a significant slip contribution to the development of the Brass orientation, along with a possible role for micro-shear banding. Annealing twins contribute to recrystallisation from the early stages of nucleation and participate in generating new orientations thereafter. Unlike texture studies on other austenitic steels, the F ({1 1 1}〈 0 1 1 〉) and Rotated Copper ({1 1 2}〈 0 1 1 〉) orientations were detected in this work. The former is due to a more homogeneous distribution of nucleation sites, while the latter can be ascribed to second order twinning and the preferred-growth 30° 〈1 1 1〉 relation with the Brass rolling component. Based on the microstructural parameters from Electron Back-Scattering Diffraction (EBSD), the modified Hall–Petch (H–P) relation was successfully applied to the 0.2% proof stress.


► Slip and micro-shear banding contribute to the development of Brass orientation.
► Annealing twins evolve since the early nucleation stage.
► F orientation forms upon recrystallisation due to relatively random nucleation.
► Second order twinning and favoured growth relation lead to Rotated Copper component.
► The modified Hall–Petch equation adequately predicts the 0.2% proof stress.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 528, Issues 13–14, 25 May 2011, Pages 4537–4549
نویسندگان
, , ,