کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
786611 | 1465603 | 2015 | 15 صفحه PDF | دانلود رایگان |
• Nanostructured Ti has been studied with a physically inspired CP model.
• The model was validated with independent experimental tests.
• The evolution with temperature of the different CRSSs was obtained.
• The strain rate sensitivity decreased for the nano crystalline material.
• The nanostructured Ti showed lower activation volumes than coarse grained Ti.
The behavior of nanostructured pure Ti has been studied experimentally and theoretically using a crystal plasticity (CP) finite element polycrystalline model. The actual polycrystalline microstructure (grain shape and orientation distributions) was accounted in voxel-based representative volume elements. The crystal behavior was described by a standard CP model with a physically-based description of the plastic slip rate based on the theory of thermally activated dislocation motion. Prismatic, basal and pyramidal
Journal: International Journal of Plasticity - Volume 70, July 2015, Pages 191–205