IMAGE FORCE ON A LATTICE DISLOCATION DUE TO A GRAIN BOUNDARY IN BCC IRON

1990 ◽  
Vol 51 (C1) ◽  
pp. C1-537-C1-543 ◽  
Author(s):  
O. KHALFALLAH ◽  
L. PRIESTER
Keyword(s):  
Grain Boundary ◽  
Image Force ◽  
Lattice Dislocation ◽  
Bcc Iron

Image force on a lattice dislocation due to a grain boundary in b.c.c. metals

1993 ◽  
Vol 67 (1) ◽  
pp. 231-250 ◽  
Author(s):  
O. Khalfallah ◽  
M. Condat ◽  
L. Priester
Keyword(s):  
Grain Boundary ◽  
Image Force ◽  
Lattice Dislocation

scholarly journals The lattice dislocation trapping mechanism at the ferrite/cementite interface in the Isaichev orientation relationship

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jaemin Kim ◽  
Hadi Ghaffarian ◽  
Keonwook Kang
Keyword(s):  
Stress Field ◽  
Orientation Relationship ◽  
Misfit Dislocation ◽  
Image Force ◽  
Initial Position ◽  
Lattice Dislocation ◽  
Atomistic Simulations ◽  
Interface Shear ◽  
Linear Elasticity Theory ◽  
Trapping Mechanism

AbstractWe analyze the lattice dislocation trapping mechanism at the ferrite/cementite interface of the Isaichev orientation relationship by atomistic simulations combined with the anisotropic linear elasticity theory and disregistry analysis. We find that the lattice dislocation trapping ability is varied by initial position of the lattice dislocation. The lattice dislocation near the interface is attracted to the interface by the image force generated by the interface shear, while the lattice dislocation located far is either attracted to or repelled from the interface, or even oscillates around the introduced position, depending on the combination of the stress field induced by the misfit dislocation array and the image stress field induced by the lattice dislocation.

Direct observation of grain boundary formation in bcc iron through TEM in situ compression test

2022 ◽  
Vol 207 ◽  
pp. 114275
Author(s):  
Hongxing Li ◽  
Seiichiro Ii ◽  
Nobuhiro Tsuji ◽  
Takahito Ohmura
Keyword(s):  
Grain Boundary ◽  
Direct Observation ◽  
Compression Test ◽  
Boundary Formation ◽  
Bcc Iron
Sign in / Sign up

Export Citation Format

Share Document