3D Stochastic Modelling of Microstructure Evolution During Solidification of Alloy 718

被引：0
|
作者：
Nastac, Laurentiu [1 ]
机构：
[1] Univ Alabama, Dept Met & Mat Engn, Box 870202, Tuscaloosa, AL 35487 USA
来源：
PROCEEDINGS OF THE 9TH INTERNATIONAL SYMPOSIUM ON SUPERALLOY 718 & DERIVATIVES: ENERGY, AEROSPACE, AND INDUSTRIAL APPLICATIONS | 2018年
关键词：
Alloy; 718; Solidification; Microstructure evolution; 3D modelling; GROWTH;
D O I：
10.1007/978-3-319-89480-5_23
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A three-dimensional (3D) stochastic model for simulating the evolution of dendritic crystals during the solidification of alloys has been developed. The model includes time-dependent computations for temperature distribution, solute redistribution in the liquid and solid phases, curvature, and growth anisotropy. The current 3D simulation software was written in Fortran 90 with threading (shared memory system with multiple cores) in both native Linux and Windows threads. This 3D software is highly efficient. It can run on PCs with reasonable amount of RAM and CPU time. 3D stochastic mesoscopic simulations at the dendrite tip length scale were done to simulate the evolution of the columnar and equiaxed dendritic microstructures, columnar-to-equiaxed transition and segregation patterns during solidification of alloy 718.
引用
收藏
页码：379 / 387
页数：9
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