DIRECTIONAL COARSENING IN SINGLE-CRYSTAL NICKEL-BASED SUPERALLOYS - A SIMULATION

被引：2
|
作者：
VERON, M
BRECHET, Y
LOUCHET, F
机构：
来源：
PLASTICITY OF METALS AND ALLOYS - ISPMA 6 | 1994年 / 97-9卷
关键词：
SUPERALLOYS; SINGLE CRYSTAL; MISFIT; COHERENCY STRESSES; DIRECTIONAL COARSENING;
D O I：
10.4028/www.scientific.net/KEM.97-98.213
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
A 3D computer simulation has been developped to study kinetic and morphologies in directional coarsening of single crystal nickel based superalloy. The driving force for this phenomenon is related to the internal stresses, including coherency stresses and partition of the applied stress between the two phases of nickel based superalloy. The model takes into account the various contributions to the driving force: the plastic flow and the diffusional flow. Results of the simulation are in good agreement with experimental observations of morphologies versus the applied stress and after different creep times.
引用
收藏
页码：213 / 218
页数：6
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