Comparison between Dislocation-Crystal Plasticity FE Analysis and Experimental Result on Dependence of Deformation on Initial Crystal Orientation for Single Crystal of Mg-based LPSO Phase

2014 ◽  
Vol 2014.27 (0) ◽  
pp. 501-502
Author(s):  
Keiko IKEDA ◽  
Ryo UETA ◽  
Kazuyuki SHIZAWA
Keyword(s):  
Single Crystal ◽  
Crystal Plasticity ◽  
Crystal Orientation ◽  
Fe Analysis ◽  
Experimental Result ◽  
Lpso Phase ◽  
Initial Crystal

Cube{100}<001> Grains Nucleation during Annealing of S-Oriented Aluminum Single Crystal

2018 ◽  
Vol 941 ◽  
pp. 1511-1516
Author(s):  
Magdalena M. Miszczyk ◽  
Henryk Paul
Keyword(s):  
Single Crystal ◽  
Crystal Lattice ◽  
Crystal Orientation ◽  
Small Deviation ◽  
Primary Recrystallization ◽  
High Angle Boundary ◽  
High Angle ◽  
Local Orientation ◽  
Aluminum Single Crystal ◽  
Initial Crystal

The crystallographic aspects of nucleation of cube grains during annealing have been analyzed in (234)[20-28 11] - oriented aluminum single crystal. The samples were plane strain compressed in a channel-die up to logarithmic strains of 0.5 (40%) and then annealed to develop initial and final stages of primary recrystallization. The deformed and annealed samples were analyzed using scanning electron microscopy equipped with EBSD facility. Local orientation measurements reveled that significant part of the sample deforms homogeneously with only small deviation from the initial crystal orientation. The heterogeneities were thin bands of localized strain in which the crystal lattice rotate towards another variant of S orientation. After annealing the orientations identified inside deformed/recovered areas were similar to that observed in the sample just after deformation. The crystal lattice of recrystallized grains exhibit a well-defined clockwise and anticlockwise rotations around the axes grouped near all normals of the {111} planes of the deformed/recovered state. The cube grains were observed in both homogeneously and heterogeneously deformed areas despite the cube-oriented nuclei surrounded by high angle boundary were not present in the as-deformed structure.

Crystal Plasticity Assessment to Crystallographic Stage I Cracking in a Ni-Based Single Crystal Superalloy

2018 ◽  
Author(s):  
Motoki Sakaguchi ◽  
Ryota Komamura ◽  
Mana Higaki ◽  
Xiaosheng Chen ◽  
Hirotsugu Inoue
Keyword(s):  
Single Crystal ◽  
Crystal Plasticity ◽  
Stage I ◽  
Single Crystal Superalloy
Sign in / Sign up

Export Citation Format

Share Document