Effect of impurities on grain boundary cohesion in bcc iron

2008 ◽  
Vol 43 (4) ◽  
pp. 736-743 ◽  
Author(s):  
E. Wachowicz ◽  
A. Kiejna
Keyword(s):  
Grain Boundary ◽  
Bcc Iron ◽  
Effect Of Impurities

Effect of Fe Segregation on the Migration of a Non-Symmetric Σ5 Tilt Grain Boundary in Al

2005 ◽  
Vol 20 (1) ◽  
pp. 208-218 ◽  
Author(s):  
M.I. Mendelev ◽  
D.J. Srolovitz ◽  
G.J. Ackland ◽  
S. Han
Keyword(s):  
Grain Boundary ◽  
Interatomic Potential ◽  
Boundary Migration ◽  
Physical Parameters ◽  
Boundary Mobility ◽  
Grain Boundary Mobility ◽  
Bulk Diffusivity ◽  
Order Of Magnitude ◽  
Effect Of Impurities ◽  
Fe Impurities

We present an analysis, based upon atomistic simulation data, of the effect of Fe impurities on grain boundary migration in Al. The first step is the development of a new interatomic potential for Fe in Al. This potential provides an accurate description of Al–Fe liquid diffraction data and the bulk diffusivity of Fe in Al. We use this potential to determine the physical parameters in the Cahn–Lücke–Stüwe (CLS) model for the effect of impurities on grain boundary mobility. These include the heat of segregation of Fe to grain boundaries in Al and the diffusivity of Fe in Al. Using the simulation-parameterized CLS model, we predict the grain boundary mobility in Al in the presence of Fe as a function of temperature and Fe concentration. The order of magnitude and the trends in the mobility from the simulations are in agreement with existing experimental results.

scholarly journals The Effect of Impurities on Grain Boundary Cohesion in Iron

2003 ◽  
Vol 9 (S02) ◽  
pp. 590-591
Author(s):  
J.S. Braithwaite ◽  
P. Rez
Keyword(s):  
Grain Boundary ◽  
Effect Of Impurities

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
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