Elastic constants of tungsten−rhenium alloys from 77 to 298 °K

Abstract
The adiabatic single−crystalline elastic constant of W−3 at.% Re and W−10 at.% Re were measured in the temperature range 77−298 °K. The elastic anisotropy ratio, C44/C′, was found to follow the behavior predicted by Fisher for transition−metal alloys. Re additions to W decrease the elastic constant C′ which indicates decreasing stability of the bcc structure. This behavior is believed to be related to the d−band structure. The Debye temperature for alloys was calculated and found not to vary appreciably from the value for pure W.