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

Publikation: Beitrag in FachzeitschriftArtikelForschungBegutachtung

1 Zitat (Scopus)

Abstract

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.

OriginalspracheEnglisch
Seiten (von - bis)81-85
Seitenumfang5
FachzeitschriftScripta materialia
Jahrgang2019
AusgabenummerVol.168
DOIs
PublikationsstatusVeröffentlicht - 15 Juli 2019

Bibliographische Notiz

Funding Information:
Financial support by the Austrian Federal government (in particular from the Bundesministerium für Verkehr, Innovation and Technologie and the Bundesministerium für Wirtschaft und Arbeit) and the Styrian Provincial Government, represented by Österreichische Forschungsförderungsgesellschaft mbH and by Steirische Wirtschaftsförderungsgesellschaft mbH, within the research activities of the K2 Competence Centre on “Integrated Research in Materials, Processing and Product Engineering”, operated by the Materials Center Leoben Forschung GmbH in the framework of the Austrian COMET Competence Centre Programme, Projects A1.23 and A2.32, is gratefully acknowledged.

Funding Information:
J.S. gratefully acknowledges the financial support by the Czech Science Foundation in the frame of the Project 17-01641S .

Publisher Copyright:
© 2019 Acta Materialia Inc.

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