Multiscale modelling approach for predicting solidification structure evolution in vacuum arc remelted superalloy ingots

被引：12
|
作者：
Nastac, L. [1 ]
机构：
[1] Univ Alabama, Dept Met & Mat Engn, Tuscaloosa, AL 35487 USA
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2012年 / 28卷 / 08期
关键词：
Multiscale modelling; Stochastic mesoscopic modelling; Vacuum arc remelting; Ingot solidification structure; Alloy; 718; Laves and NbC phases;
D O I：
10.1179/1743284712Y.0000000010
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The present paper describes the mathematical development and validation of a comprehensive stochastic model capable of predicting at the mesoscopic level the solidification structure, Laves, and NbC phases in superalloy ingots processed by vacuum arc remelting (VAR) technology. The multiscale modelling approach consists of a coupling between a fully transient deterministic macroscopic code and a stochastic mesoscopic solidification structure code. Predictions from the model were validated against experimental measurements. Multiscale model predictions are compared against a commercial size VAR ingot.
引用
收藏
页码：1006 / 1013
页数：8
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