Publications Details
Physics of he platelets in metal tritides
Thin He-filled platelets bounded by an attached dislocation dipole are shown to be stable structures in fcc metals with low surface energy and high shear modulus. They can form from Griffith-like nano-cracks, grow by radial expansion of the dipole, and transition to spherical bubbles if the dislocations become detached. Formulations of gas pressures within these precipitates are tested by lattice dilation data and changes in their dimensions with age. Copyright © 2009 ASM International® All rights reserved.