scholarly journals Directional Anisotropy of Crack Propagation Along Σ3 Grain Boundary in BCC Fe

2015 ◽  
Vol 69 (2) ◽  
pp. 525-530 ◽  
Author(s):  
G. Sainath ◽  
B. K. Choudhary
Keyword(s):  
Grain Boundary ◽  
Crack Propagation ◽  
Directional Anisotropy

Molecular dynamics simulation of crack propagation behaviors at the Ni/Ni3Al grain boundary

RSC Advances ◽  
2014 ◽  
Vol 4 (62) ◽  
pp. 32749 ◽  
Author(s):  
Jingui Yu ◽  
Qiaoxin Zhang ◽  
Rong Liu ◽  
Zhufeng Yue ◽  
Mingkai Tang ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Grain Boundary ◽  
Crack Propagation ◽  
Dynamics Simulation

Investigation to the Effects of Grain Misorientation on the Performance of Short Cracks

2007 ◽  
Vol 353-358 ◽  
pp. 1165-1168
Author(s):  
Yan Hai Xu ◽  
Hao Li ◽  
Li Guo
Keyword(s):  
Grain Boundary ◽  
Crack Propagation ◽  
Geometric Parameters ◽  
Short Crack ◽  
Short Cracks ◽  
Grain Orientations ◽  
Grain Misorientation

The influences of crystallographic and geometric parameters such as grain misorientation on the performance of short cracks are illustrated based on FEM in this paper. Firstly, the microstructure is simulated to account for the effects of grain misorientation on the performance of short cracks and the short cracks are initiated within the microstructure for the further investigation. The influence of grain misorientation is demonstrated by the change of neighboring grain orientations with an initiated short crack from 0° to 180°. The effects of the grain boundary on the short crack with the crack arrested or retarded are described by the crack propagation until it approached the grain boundary. The results will give more useful information such as crack arrested and retardation to the further research on the characteristics and evolution of short cracks.

Fatigue Crack Propagation and Grain Boundary

1996 ◽  
Vol 207-209 ◽  
pp. 609-612
Author(s):  
S. Hashimoto ◽  
Alexei Vinogradov ◽  
Sei Miura
Keyword(s):  
Fatigue Crack ◽  
Grain Boundary ◽  
Crack Propagation ◽  
Fatigue Crack Propagation

Microstructurally small fatigue crack propagation and retardation at grain boundary in a polycrystalline Ni-base superalloy

2018 ◽  
Vol 2018 (0) ◽  
pp. OS0819
Author(s):  
Masafumi MATSUNAMI ◽  
Motoki SAKAGUCHI ◽  
Hideaki KANEKO ◽  
Takanori KARATO ◽  
Kenta SUZUKI ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
Grain Boundary ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
Small Fatigue Crack ◽  
Base Superalloy
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