Abstract
A detailed analysis of the antiphase boundary atomic structure and energy for a general boundary plane is reported. It has been shown that Flinn's expression for the antiphase boundary energy is essentially correct for most of the boundary planes, but does not hold for some low indices planes. Those planes are exceptional by the occurence of so called dual antiphase boundary structure. Theoretical results are discussed in relation to the dependence of the flow stress on temperature in Ll2 ordered alloys. The presented model may serve as a basis for elucidation of climb type dislocation dissociation which has been recently observed by electron microscope using weak beam technique.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
