کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1562588 999591 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical simulation of recrystallization in BCC metals
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Numerical simulation of recrystallization in BCC metals
چکیده انگلیسی

A Monte Carlo simulation technique was utilized to model the recrystallization process of elongated grains in deformed metals with body-centered cubic crystalline structure. The initial microstructure was determined using Voronoi polygons. Two mechanisms, subgrain growth and strain-induced boundary migration, were considered for the nucleation of new grains during modeling of recrystallization. Each subgrain was considered to have specific orientation and stored energy. The simulation results indicated that the strain-induced boundary migration mechanism was the main contributor to the recrystallization process. The recrystallization kinetics can be described by an Avrami-type equation with a time exponent n of about 3.52, which is in agreement with time exponents reported in interstitial-free ferritic steels. A normal grain growth process was also observed in the simulated microstructure.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 49, Issue 3, September 2010, Pages 512–517
نویسندگان
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