A Simple Model for Abnormal Grain Growth
نویسندگان
چکیده
منابع مشابه
Linear bubble model of abnormal grain growth
A linear bubble model of grain growth is introduced to study the conditions under which an isolated grain can grow to a size much larger than the surrounding matrix average (abnormal growth). We first consider the case of bubbles of two different types such that the permeability of links joining unlike bubbles is larger than that of like bubbles (a simple model of grain boundary anisotropy). St...
متن کاملAbnormal Grain Growth and Texture Development
A theory for abnormal grain growth (AGG) in polycrystalline materials is revisited and extended in order to predict AGG in textured polycrystals. The motivation for the work is to improve our understanding of the origins of the Goss texture component, {110}<001>, during annealing of Fe-Si sheet. Since the AGG phenomenon in grain-oriented electrical steels is known to be dependent on the presenc...
متن کاملA kinetic model for grain growth
We provide a well–posedness analysis of a kinetic model for grain growth introduced by Fradkov which is based on the von Neumann–Mullins law. The model consists of an infinite number of transport equations with a tri-diagonal coupling modelling topological changes in the grain configuration. Self–consistency of this kinetic model is achieved by introducing a coupling weight which leads to a non...
متن کاملA simple phenomenological model for grain clustering in turbulence
We propose a simple model for density fluctuations of aerodynamic grains, embedded in a turbulent, gravitating gas disc. The model combines a calculation for the behaviour of a group of grains encountering a single turbulent eddy, with a hierarchical approximation of the eddy statistics. This makes analytic predictions for a range of quantities including: distributions of grain densities, power...
متن کاملA simple model for demonstrating abnormal slitlamp findings.
One of the challenges facing the ophthalmologist-teacher is to demonstrate abnormal physical findings to medical students, beginning ophthalmology residents, and general physicians at the time dictated by the students’ schedules rather than by the availability of patients in the clinic. Abnormalities of the ocular fundus and external eye are effectively displayed by goodquality photographs, but...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ISIJ International
سال: 2012
ISSN: 0915-1559,1347-5460
DOI: 10.2355/isijinternational.52.2278