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

Jiri Svoboda, Shan Yao, Ernst Kozeschnik, Franz-Dieter Fischer

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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.

Original languageEnglish
Pages (from-to)81-85
Number of pages5
JournalScripta materialia
Issue numberVol.168
Publication statusPublished - 15 Jul 2019

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