1423 Quasicontinuum Analysis on Misfit Dislocation in Ni-based Superalloys
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概要
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The misfit dislocation at the γ/γ' interface of Ni-based superalloys were investigated using the quasicontinuum simulation. In order to mimic the γ/γ' interface, the lattice parameter of Ni is slightly changed by modifying the embedding function. The positive/negative misfit is set on the γ' phases, developing the formation of misfit dislocations at the γ/γ' interface. In the simulation of a flat γ/γ' interface, it is found that the dislocations have edge characters and the interval spacing is depend on the magnitude of the lattice misfit. Then the effects of edge's shape were also investigated between round and square edge.
- 一般社団法人日本機械学会の論文
- 2005-11-17
著者
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Tomita Yoshihiro
Graduate School Of Engineering Kobe University
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Yashiro Kisaragi
Graduate School Of Engineering Kobe University
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TOMITA Yoshihiro
Grad. Sch. Sci., Tech., Kobe Univ.
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DJUANSJAH Joy
Grad. Sch. Sci. Tech., Kobe Univ.
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YASHIRO Kisaragi
Dep. of Mech. Eng., Kobe Univ.
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Tomita Yoshihiro
Grad. Sch. Sci. Tech. Kobe Univ.
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Djuansjah Joy
Graduate School Of Science And Technology Kobe University
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