TY - JOUR

T1 - Influence of misfit stress relaxation by power-law creep and plasticity on kinetics of coarsening of precipitates

AU - Svoboda, Jiri

AU - Yao, Shan

AU - Kozeschnik, Ernst

AU - Fischer, Franz-Dieter

N1 - Publisher Copyright: © 2019 Acta Materialia Inc.

PY - 2019/7/15

Y1 - 2019/7/15

N2 - Influence of coarsening of precipitates on creep in metals and alloys has been studied experimentally and modelled in the past. However, a proper model to understand the role of plasticity and creep in the matrix to the kinetics of coarsening of misfitting precipitates is still missing. Such a model is developed based on a thermodynamic approach utilizing earlier solutions of mechanical interactions between the misfitting precipitates and the matrix. Numerical simulations demonstrate a significant retardation of the coarsening process controlled by power-law creep in the matrix within a wide range of its activity.

AB - Influence of coarsening of precipitates on creep in metals and alloys has been studied experimentally and modelled in the past. However, a proper model to understand the role of plasticity and creep in the matrix to the kinetics of coarsening of misfitting precipitates is still missing. Such a model is developed based on a thermodynamic approach utilizing earlier solutions of mechanical interactions between the misfitting precipitates and the matrix. Numerical simulations demonstrate a significant retardation of the coarsening process controlled by power-law creep in the matrix within a wide range of its activity.

UR - http://www.scopus.com/inward/record.url?scp=85065091576&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2019.04.016

DO - 10.1016/j.scriptamat.2019.04.016

M3 - Article

VL - 2019

SP - 81

EP - 85

JO - Scripta materialia

JF - Scripta materialia

SN - 1359-6462

IS - Vol.168

ER -