Phase-Field Simulation of the Effect of Elastic Inhomogeneity on Microstructure Evolution in Ni-Based Superalloys

被引：27

作者：

Tsukada, Yuhki ^{[1
]}

Murata, Yoshinori ^{[1
]}

Koyama, Toshiyuki ^{[2
]}

Morinaga, Masahiko ^{[1
]}

机构：

[1] Nagoya Univ, Grad Sch Engn, Dept Mat Phys & Energy Engn, Nagoya, Aichi 4648603, Japan

[2] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

来源：

MATERIALS TRANSACTIONS | 2009年 / 50卷 / 04期

关键词：

phase-field model; nickel-based alloys; elastic inhomogeneity; AL ALLOYS; MODEL; STRESS; SYSTEM;

D O I：

10.2320/matertrans.MBW200826

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Phase-field simulation is performed to examine the effect of elastic inhomogeneity between the gamma and gamma' phases on microstructure evolution of the gamma' phase in Ni-based superalloys. For solving the elastic equilibrium equation numerically in the elastically inhomogeneous system. an iterative approach is used. In this simulation, both elastic anisotropy and shear modulus are varied independently based on the elastic constants of practical Ni-based superalloy. Four different types of anti-phase domains in the gamma' phase are also considered in this simulation. The variation of clastic anisotropy affected significantly the manner of both morphology of the gamma' phase and distribution function of the gamma', particle size, whereas the variation of shear modulus did not affect them. [doi: 10.2320/matertrans.MBW200826]

引用

页码：744 / 748

页数：5

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