Open AccessEvolution of interphase misfit dislocation networks in Ni-based single-crystal superalloy
Author(s) -
Tao Zhu,
Chongyu Wang,
Yong Gan
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.156
Subject(s) - materials science , interphase , dislocation , superalloy , condensed matter physics , molecular dynamics , hexahedron , single crystal , crystallography , phase (matter) , microstructure , thermodynamics , composite material , physics , finite element method , genetics , chemistry , quantum mechanics , biology
The molecular dynamics simulations are used to study the characteristics of misfit dislocation networks in the γ/γ′ phase interface of a Ni-based single-crystal superalloy. From the analyses of the formation of interphase dislocations, the reaction of dislocations, and the evolution of dislocation networks, we find that the shape of the dislocation network finally evolves into a regular hexahedron from an original tetradedron.