Quantitative Metallography for Computer Simulation of Abnormal Grain Growth in Three Dimensions

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Monte Carlo simulation of abnormal grain growth during nucleation

Abstract. In materials that possess a well developed sub-grain structure in the deformed state, nucleation can be considered as a type of abnormal (sub-)grain growth. The critical condition for this type of nucleation was investigated with a Monte Carlo code. The findings were as follows. (1) The nucleus size is a key factor for survival of an embryo. An embryo with a size below a critical valu...

متن کامل

Quantitative metallography of deformed grains

The effect of plastic deformation on the grain boundary surface area per unit volume and edge length per unit volume is examined using two methods. The first by applying homogeneous deformations to tetrakaidecahedra in a variety of orientations and the second by using the principles of stereology. It is shown that the methods produce essentially identical results. It is now possible to calculat...

متن کامل

Computer Simulation of Grain Growth Using a Continuum Field Model

The kinetics of grain growth in two-dimensions (2-D) were investigated by computer simulations based on a continuum diffuse-interface field model. In this model, a polycrystalline microstructure is described by many orientation field variables whose temporal and spatial evolutions can be obtained by solving the time-dependent Ginzburg-Landau (TDGL) equations. It is found that the time dependenc...

متن کامل

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 کامل

Diffusion generated motion for grain growth in two and three dimensions

An efficient algorithm for accurately simulating curvature flow for large networks of curves in two dimensions and surfaces in three dimensions on uniform grids is proposed. This motion arises in the technologically important problem of simulating grain boundary motion in polycrystalline materials. In this formulation grains are zero level sets of signed distance functions. Curvature motion is ...

متن کامل

ذخیره 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: Journal of the Japan Institute of Metals and Materials

سال: 1995

ISSN: 0021-4876,1880-6880

DOI: 10.2320/jinstmet1952.59.10_1006