کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7971842 | 1514613 | 2018 | 36 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Misorientation development in continuous dynamic recrystallization of AZ31B alloy sheet and polycrystal plasticity simulation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Misorientation development in continuous dynamic recrystallization of AZ31B alloy sheet and polycrystal plasticity simulation Misorientation development in continuous dynamic recrystallization of AZ31B alloy sheet and polycrystal plasticity simulation](/preview/png/7971842.png)
چکیده انگلیسی
A series of electron backscattered diffraction (EBSD) experiments is carried out to explore nucleation features in the continuous dynamic recrystallization (CDRX) of AZ31 Mg alloy sheets at 200â¯Â°C. The CDRX mechanism that misorientation accumulated from the core area to grain boundary leads to nucleation of dynamic recrystallization grains around parent grains can be identified for the present fine-grained AZ31B Mg alloy rolling sheet. A crystal plasticity approach for DRX simulation is extended to simulate the hot deformation and CDRX of the AZ31B magnesium alloy sheets. The experimental results of uniaxial tension along rolling direction (RD) and compression tests along RD and normal direction of the AZ31B sheets at 200â¯Â°C are numerically investigated by the current model in terms of mechanical behaviors, grains' rotation, textures orientation and grain size evolution. The VPSC-DRX model that considers multiple slip systems and indirectly incorporates the misorientation can reproduce well the stress-strain curves, r-values, grain size change and texture evolution. The introduction of DRX will change the slip mode activities at 200â¯Â°C. The VPSC-DRX model can better predict the texture evolution compared to the simulation results regardless of DRX effects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 730, 11 July 2018, Pages 438-456
Journal: Materials Science and Engineering: A - Volume 730, 11 July 2018, Pages 438-456
نویسندگان
Guowei Zhou, Zihan Li, Dayong Li, Yinghong Peng, Huamiao Wang, Peidong Wu,