کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10620461 988631 2012 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Crystal plasticity modeling of texture development and hardening in TWIP steels
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Crystal plasticity modeling of texture development and hardening in TWIP steels
چکیده انگلیسی
A new crystal plasticity model for face-centered cubic metals exhibiting deformation twinning is presented and assessed based on a comprehensive and original experimental dataset for twinning-induced plasticity (TWIP) steel. Various scale transition schemes are tested, including a finite-element representation of the polycrystalline aggregate and a simplified Taylor-type modeling of pairwise interactions of adjacent grains. The same constitutive law is used at the grain level, relying on a dislocation-density-based description of work hardening and accounting for the latent hardening due to the presence of twins. At the macroscopic scale, the model provides improved predictions of the development of texture and hardening in uniaxial tension and during rolling. At the grain level, electron backscatter diffraction measurements confirm that the model properly estimates the volume fraction of twins inside individual grains as well as the average disorientation relative to the grain mean lattice orientation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 60, Issue 5, March 2012, Pages 2135-2145
نویسندگان
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