Advanced Processing and Properties of High Performance Alloys,

Progress is reviewed for a research program whose primary purpose is to establish a fundamental understanding of the applications and consequences of selected advanced processing techniques to high performance alloys. The broadly-ranged research effort includes studies of powder processing hot isostatic pressing, fracture of alloys containing processing-induced defects porosity, and application of advanced processing techniques to high performance alloys rapidly solidified, dispersion-strengthened titanium alloys. Many aspects of the program also constitute fundamental studies of deformation and fracture utilizing engineering alloys containing processing-induced defects. Progress for the period October 1, 1985 to December 31, 1985 is reviewed for the following parts of the research program the influence of voidpore distributions on fracture, hot isostatic pressing of metallic powders, deformation of rapidly solidified Ti alloys at elevated temperatures, and strain-path effects and the combined influence of stress state and grain size on the fracture of alloys containing hydrides.