The Comparative Effectiveness of Nb Solute and NbC Precipitates at Impeding Grain Boundary Motion in Nb-Steels

2007 ◽  
pp. 53-56
Author(s):  
Christopher R. Hutchinson ◽  
Hatem S. Zurob ◽  
Chad W. Sinclair ◽  
Yves Bréchet
Keyword(s):  
Grain Boundary ◽  
Comparative Effectiveness ◽  
Boundary Motion ◽  
Grain Boundary Motion

The Comparative Effectiveness of Nb Solute and NbC Precipitates at Impeding Grain Boundary Motion in Nb-Steels

2007 ◽  
Vol 561-565 ◽  
pp. 53-56
Author(s):  
Christopher R. Hutchinson ◽  
Hatem S. Zurob ◽  
Chad W. Sinclair ◽  
Yves Bréchet
Keyword(s):  
Grain Boundary ◽  
Comparative Effectiveness ◽  
Recrystallization Temperature ◽  
Boundary Motion ◽  
Grain Boundary Motion

The comparative effectiveness of solute Nb and NbC particles at impeding grain boundary motion is treated theoretically. It is shown that, for a steel containing ~0.05 at% Nb (~0.1 wt%Nb), under typical recrystallization conditions, solute Nb is more effective in the ferrite, whereas in the austenite, depending on the exact recrystallization temperature, either solute Nb or NbC precipitates may be more effective.

Coupled grain boundary motion in a nanocrystalline grain boundary network

2011 ◽  
Vol 65 (2) ◽  
pp. 151-154 ◽  
Author(s):  
M. Velasco ◽  
H. Van Swygenhoven ◽  
C. Brandl
Keyword(s):  
Grain Boundary ◽  
Boundary Motion ◽  
Grain Boundary Motion

Motion of Crystal/Crystal and Crystal/Amorphous Interfaces

1990 ◽  
Vol 183 ◽  
Author(s):  
J. L. Batstone
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Temperature ◽  
Grain Boundary ◽  
Boundary Motion ◽  
High Temperature Annealing ◽  
Thermally Activated ◽  
Transmission Electron ◽  
Grain Boundary Motion

AbstractMotion of ordered twin/matrix interfaces in films of silicon on sapphire occurs during high temperature annealing. This process is shown to be thermally activated and is analogous to grain boundary motion. Motion of amorphous/crystalline interfaces occurs during recrystallization of CoSi2 and NiSi2 from the amorphous phase. In-situ transmission electron microscopy has revealed details of the growth kinetics and interfacial roughness.

Grain boundary motion in particulate material

2020 ◽  
pp. 541-544
Author(s):  
J.L. Turner ◽  
M. Nakagawa ◽  
M.T. Lusk
Keyword(s):  
Grain Boundary ◽  
Particulate Material ◽  
Boundary Motion ◽  
Grain Boundary Motion

Grain Boundary Migration and Compensation Effect

2007 ◽  
Vol 550 ◽  
pp. 387-392
Author(s):  
Pavel Lejček
Keyword(s):  
Grain Boundary ◽  
Grain Boundaries ◽  
Compensation Effect ◽  
Activation Enthalpy ◽  
Boundary Migration ◽  
Grain Boundary Migration ◽  
Boundary Motion ◽  
Exponential Factor ◽  
Grain Boundary Motion

Anisotropy of grain boundary motion in a Fe–6at.%Si alloy is represented by a spectrum of values of the activation enthalpy of migration and the pre-exponential factor, depending on the orientation of individual grain boundaries. The general plot of these values exhibits a pronounced linear interdependence called the compensation effect. It is shown that changes of these values, caused by changes of intensive variables, are thermodynamically consistent.

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