Growth of a<100> loop in by absorbtion of a/2<111> loop in bcc Iron
Anthony Tom
Department of Nuclear Engineering, University of Tennessee
This page shows the interstitial transformation of interacting a/2<111> loops into a single loop. These structures were created by Anthony Tom at the University of Tennessee.
In body centered cubic iron, a/2<111> interstitial dislocation loops are a primary feature under irradiation. These defects have important implications for irradiatied materials such as being biased sinks, contirbuting to embrittlement, and being a proposed method for a<100> loop formation. This work compared molecular dynamics simulations of interacting a/2<111> loop to relationships derived from linear elastic theory. The best relationship was a sigmoid relationship.
Interactive Structure
References
1. J. Marian, B. D. Wirth, J. M. Perlado, "Mechanisms of Formation and Growth of <100> Interstitial Loops in Ferritic Materials", Phys. Rev. Lett., 25, 255507 (2001), doi: 10.1103/PhysRevLett.88.255507
posted: June 2026.
updated: June 2026.