Nano Science and Technology Institute
Nanotech 2007 Vol. 1
Nanotech 2007 Vol. 1
Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 1
 
Chapter 6: Nanoscale Modeling
 

Atomistic Simulation of Cracktip Failure Pathways in Fe and Fe Alloys

Authors:P.A. Gordon, T. Neeraj, Y. Li and M.J. Luton
Affilation:ExxonMobil Research & Engineering, US
Pages:512 - 515
Keywords:Fe, simulation, dislocation emission, transition states
Abstract:This work employs transition pathway analysis to examine the activation barriers associated with failure of atomically sharp cracktips in Fe. The effect of structual and compositional heterogeneities are explored, as it is speculated that these factors may have a significant effect on the intrinsic toughness of steels. In particular, factors that alter the competition between brittle fracture and ductile blunting of cracktips can have an impact on the ductile to brittle transition temperature, a property that can limit material performance in a given application.
Atomistic Simulation of Cracktip Failure Pathways in Fe and Fe AlloysView PDF of paper
ISBN:1-4200-6182-8
Pages:726
Hardcopy:$139.95
 
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