The fatigue crack growth of Ti-6Al-4V in the diffusion bond annealed condition was examined in the range of growth rates from 10 to the minus 12th power to 10 to the minus 4th power m/cycle with the use of compact tension and part-through-crack specimens. The effects of cyclic frequency and maximum stress were investigated. Fractured surfaces were examined by scanning electron microscopy over the entire range of crack growth. The ...
The first quadrant yield loci of the Ti-6Al-4V alloy determined by means of tensile tests in the rolling and transverse directions and compression tests in the thickness direction were compared with those predicted by Hill's theory of anisotropic yielding and Knoop hardness measurements. Sheet material in the hot-rolled, cold-rolled, and mill-annealed conditions possessing various degrees of anisotropy were examined. The loci predicted from the Knoop hardness measurements did not agree ...
Research was conducted in an effort to determine the mechanisms of atom transport responsible for the growth of filamentary crystals (whiskers) from the solid metal. To this end, whiskers have been grown from single phase, binary alloys of indium-tin and indium-lead. Attempts have been made to detect any difference in composition between the whisker and the base alloy from which it was grown. Such a change in composition would suggest ...
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