Evolution of the E structural unit during uniaxial and constrained tensile deformation

Mechanics Research Communications

Volumn 35, Issue 1-2, 2008, Pages 81-88

  Spearot, Douglas E ^a  

^a University of Arkansas   (United States)

Author keywords

Atomistic simulation; Dislocation nucleation; Grain boundaries; Interface structure; Molecular dynamics; Porosity

Indexed keywords

DISLOCATIONS (CRYSTALS); GRAIN BOUNDARIES; MOLECULAR STRUCTURE; NUCLEATION; POROSITY; TENSILE PROPERTIES;

ATOMISTIC SIMULATION; DISLOCATION NUCLEATION; INTERFACE STRUCTURE; TENSILE DEFORMATION;

MOLECULAR DYNAMICS;

EID: 37349116066     PISSN: 00936413     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.mechrescom.2007.09.002     Document Type: Article

References (15)

1. Hull D., and Bacon D.J. Introduction to Dislocations (2001), Butterworth Heinemann, Oxford
2. Kelchner C.L., Plimpton S.J., and Hamilton J.C. Dislocation nucleation and defect structure during surface indentation. Phys. Rev. B. 58 (1998) 11085-11088
3. Melchionna S., Ciccotti G., and Holian B.L. Hoover NPT dynamics for systems varying in shape and size. Mol. Phys. 78 (1993) 533-544
4. Mishin Y., Mehl M.J., Papaconstantopoulos D.A., Voter A.F., and Kress J.D. Structural stability and lattice defects in copper: Ab initio, tight-binding, and embedded-atom calculations. Phys. Rev. B 63 (2001) 224106 1-16
5. Rittner J.D., and Seidman D.N. 〈1 1 0〉 symmetric tilt grain-boundary structures in FCC metals with low stacking-fault energies. Phys. Rev. B 54 (1996) 6999-7015
6. Sansoz F., and Molinari J.F. Incidence of atom shuffling on the shear and decohesion behavior of a symmetric tilt grain boundary in copper. Scripta Mater. 50 (2004) 1283-1288
7. Sansoz F., and Molinari J.F. Mechanical behavior of Σ tilt grain boundaries in nanoscale Cu and Al: a quasicontinuum study. Acta Mater. 53 (2005) 1931-1944
8. Shewchuk, J.R., 1994. An introduction to the conjugate gradient method without the agonizing pain. .
9. Spearot D.E., Jacob K.I., and McDowell D.L. Nucleation of dislocations from [0 0 1] bicrystal interfaces in aluminum. Acta Mater. 53 (2005) 3579-3589
10. Spearot D.E., Jacob K.I., and McDowell D.L. Dislocation nucleation from bicrystal interfaces with dissociated structure. Int. J. Plasticity 23 (2007) 143
11. Spearot D.E., Tschopp M.A., Jacob K.I., and McDowell D.L. Tensile strength of 〈1 0 0〉 and 〈1 1 0〉 tilt bicrystal copper interfaces. Acta Mater. 55 (2007) 705-714
12. Tschopp, M.A., McDowell, D.L., in press. Dislocation nucleation in Σ3 asymmetric tilt grain boundaries. Int. J. Plasticity, doi:10.1016/j.ijplas.2007.02.010.
13. Tschopp M.A., Tucker G.J., and McDowell D.L. Structure and free volume of 〈1 1 0〉 symmetric tilt grain boundaries with the E structural unit. Acta Mater. 55 (2007) 3959-3969
14. Van Swygenhoven H., and Weertman J.R. Deformation in nanocrystalline metals. Mater. Today 9 (2006) 24-31
15. Wolf D. Structure-energy correlation for grain boundaries in FCC metals. III. Symmetrical tilt boundaries. Acta Metall. 38 (1990) 781-790