Phase Field Crystal Modeling for Nanocrystalline Growth

2013 ◽  
Vol 785-786 ◽  
pp. 512-516
Author(s):  
Ying Jun Gao ◽  
Wen Quan Zhou ◽  
Yao Liu ◽  
Chuang Gao Huang ◽  
Qiang Hua Lu
Keyword(s):  
Grain Boundary ◽  
Grain Growth ◽  
Phase Field ◽  
Grain Orientation ◽  
Boundary Structure ◽  
Two Dimensional ◽  
Grain Boundary Structure ◽  
Simulation Results ◽  
Misorientation Of Grains ◽  
Phase Field Crystal

The two-mode phase field-crystal (PFC) method is used to simulate the nanograin growth, including the grain growth in different sets of crystal planes, the grain boundary structure with mismatch, the grain orientation and also the incoherent grain boundary in two dimensional plane. It is obviously observed that there are dislocation structures in nanograin boundary due to mismatch and misorientation of grains. These simulation results can not only be used in artificial controlling the grain boundary of nanograin, but also is of significant for designing new nanograin with a good grain boundary for structure materials.

Phase field crystal study of grain boundary structure and annihilation mechanism in low-angle grain boundary

2019 ◽  
Vol 129 ◽  
pp. 163-175 ◽  
Author(s):  
Huijun Guo ◽  
Yuhong Zhao ◽  
Yuanyang Sun ◽  
Jinzhong Tian ◽  
Hua Hou ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Phase Field ◽  
Boundary Structure ◽  
Grain Boundary Structure ◽  
Phase Field Crystal

Predicting grain boundary structure and energy in BCC metals by integrated atomistic and phase-field modeling

2019 ◽  
Vol 164 ◽  
pp. 799-809 ◽  
Author(s):  
Di Qiu ◽  
Pengyang Zhao ◽  
Chen Shen ◽  
Weijie Lu ◽  
Di Zhang ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Phase Field ◽  
Boundary Structure ◽  
Phase Field Modeling ◽  
Bcc Metals ◽  
Field Modeling ◽  
Grain Boundary Structure

scholarly journals Grain and Grain Boundary Structure Evolution Without Texture Changes During Normal Grain Growth in 2-D Al Strips

1999 ◽  
Vol 32 (1-4) ◽  
pp. 187-195 ◽  
Author(s):  
V. Sursaeva ◽  
U. Czubayko ◽  
A. Touflin
Keyword(s):  
Grain Boundary ◽  
Grain Growth ◽  
Columnar Structure ◽  
Boundary Structure ◽  
Structure Evolution ◽  
Grain Boundary Character Distribution ◽  
Grain Boundary Character ◽  
Grain Boundary Structure ◽  
Texture Change ◽  
Character Distribution

Changes of the grain boundary character distribution and texture during normal grain growth have been investigated using the SAC-SEM based method and a 4 circle X-ray texture goniometer on A1 strips with columnar structure. The microstructure of the strips consists of regions with oriented (clusters) and randomly oriented grains. All changes of microstructure are outside the clusters during normal grain growth and consequently no texture change was observed.

Effect of CoO Doping on the Sintering Ability and Mechanical Properties of Y-TZP

2004 ◽  
Vol 449-452 ◽  
pp. 265-268 ◽  
Author(s):  
Tetsuhiko Onda ◽  
H. Yamauchi ◽  
Motozo Hayakawa
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Grain Boundary ◽  
Grain Refinement ◽  
Grain Growth ◽  
Sintering Temperature ◽  
Tetragonal Zirconia ◽  
Boundary Structure ◽  
Grain Boundary Structure ◽  
Boundary Strength

The effect of CoO addition into Y-TZP (Yttria doped Tetragonal Zirconia Polycrystals) was studied on the evolution of its sintering ability, grain size, grain boundary structure and mechanical properties. The doping of a small amount of CoO effectively reduced the sintering temperature. A small amount of CoO up to ~ 0.3 mol% was effective for the suppression of grain growth, but the addition of 1.0 mole % resulted in an enhanced grain growth. The hardness and toughness of the CoO doped TZP were about the same as those of undoped TZP. Furthermore, despite the grain refinement, CoO doped TZP did not exhibit improved mechanical properties. This may be suggesting that CoO dopant had weakened the grain boundary strength.

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