Mechanistic Study of the Brittle to Ductile Transition in High Melting PointIntermetallic Compounds: A Report on a Program of Research Conducted at The University of Illinois Department of Materials Science and Engineering

摘要

This report describes the work done involving a study of high melting pointintermetallic compounds. In order to study the deformation mechanisms of these materials at ambient temperatures, where they exhibit brittle behavior, it was proposed that ductile phase toughening should be employed so that some degree of plastic deformation might be induced in the brittle compounds. It was hoped that from a detailed analysis of defects in the deformed samples the various factors influencing the deformation mechanisms would become apparent. In the case of the higher temperature deformation experiments, a determination of the contribution of diffusive mechanisms to plastic deformation was to be made.