Passing dislocations in f.c.c. alloys and related superlattices

1 June 1969

journal article
research article
Published by Taylor & Francis in Philosophical Magazine

Vol. 19 (162) , 1111-1125
https://doi.org/10.1080/14786436908228638

Abstract

A detailed numerical analysis has been made of the equilibrium configurations associated with extended passing screw dislocations of opposite signs on parallel planes in a disordered (f.c.c.) and ordered alloy (Cu₃Au type). Both the shear stresses required to move these configurations past one another as well as the cross-slip stresses exerted by one on the other have been calculated. It is shown that ordering increases both the passing and cross-slip stresses. This is related for the most part to the increased degree of coalescence in the extended partials brought about by atomic ordering.

Keywords

This publication has 3 references indexed in Scilit:

Behavior of Passing Dislocations in Superlattices
Journal of Applied Physics, 1967
The effect of ordering on the strength and dislocation arrangements in the Ni₃Mn superlattice
Philosophical Magazine, 1961
Cross slip of extended dislocations
Acta Metallurgica, 1959