Phase field simulation of rafting behavior of γ' phase in nickel base superalloy

Akiyuki Takahashi, Yutaka Kobayashi, Masanori Kikuchi

研究成果: Conference contribution査読

4 被引用数 (Scopus)

抄録

This paper describes phase field simulations of the rafting behavior of γ' phase with a simple interfacial dislocation network model. The interfacial dislocation network model accounts for the effect of the network on the lattice misfit between γ and γ' phases and the subsequent rafting behavior. The model is implemented into the phase field simulation to see the dependence of the rafting behavior of γ' phases on the interfacial dislocation network. Without the dislocation network model, the amount of the rafting was negligibly small. On the other hand, with the dislocation network model, the γ' phases shows a large amount of rafting, which is in good agreement with the results of the experimental observations. Therefore, the combination of the phase field method and the simple interfacial dislocation network model developed in this work is appropriate for the simulation of the rafting of γ' phases.

本文言語English
ホスト出版物のタイトルAdvances in Fracture and Materials Behavior - Selected, peer reviewed papers of the Seventh International Conference on Fracture and Strength of Solids (FEOFS2007)
出版社Trans Tech Publications
ページ471-476
ページ数6
ISBN(印刷版)0878493999, 9780878493999
DOI
出版ステータスPublished - 2008
イベント7th International Conference on Fracture and Strength of Solids, FEOFS 2007 - Urumqi, China
継続期間: 27 8月 200729 8月 2007

出版物シリーズ

名前Advanced Materials Research
33-37 PART 1
ISSN(印刷版)1022-6680

Conference

Conference7th International Conference on Fracture and Strength of Solids, FEOFS 2007
国/地域China
CityUrumqi
Period27/08/0729/08/07

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