Accession Number : AD0717757

Title :   The Study of Point Defects in CsCl Ordered Alloys and Other Intermetallic Compounds.

Descriptive Note : Final rept. 1 Jun 68-31 Aug 70,

Corporate Author : ILLINOIS UNIV URBANA DEPT OF METALLURGY AND MINING ENGINEERING

Personal Author(s) : Lieberman,David S.

Report Date : DEC 1970

Pagination or Media Count : 11

Abstract : Simultaneous radioactive trace diffusion studies of various isotopes of both species in two intermetallic compounds, AuZn and FeCo, were completed. In the former, correlation effects were also analyzed and in the latter, the isotope effect was measured. In the ordered region of FeCo and in the AuZn (also ordered) alloys, the agreement between observations and the theoretical six-atom-vacancy jump mechanism lends strong support to this model. An analysis of line and plane defects produced in situ with the field ion microscope was made and the application of a computer simulation technique was completed. The kinetics of the stabilization of the low temperature product phase following the beta to beta double prime transformation in equiatomic AuCd were successfully accounted for in terms of the annealing out of point defects introduced by the movement of the transformation interface on cooling. (Author)

Descriptors :   (*CRYSTAL DEFECTS, INTERMETALLIC COMPOUNDS), CADMIUM ALLOYS, COBALT ALLOYS, GOLD ALLOYS, IRON ALLOYS, ZINC ALLOYS, PHASE STUDIES, TRACER STUDIES, DIFFUSION, ANNEALING, SIMULATION, DEFORMATION, ION BOMBARDMENT

Subject Categories : Properties of Metals and Alloys
      Crystallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE