Orientation-dependent mechanical responses in Mo-Re alloys evaluated via
micro-pillars
Abstract
Textures in Molybdenum-Rhenium alloys are inevitable during thermal
fabrication. [110] and [100] are common orientations in
Molybdenum-Rhenium alloys and effect mechanical responses. However,
orientation dependence of mechanical responses in Molybdenum-Rhenium
alloys is not quite clear yet. To clarity this problem, micro-pillar
compression tests are conducted in grains with orientation [100] and
[110] separately. Orientation-dependent compressive properties are
found in Mo-14Re and Mo-42Re, but are not found in Mo and Mo-5Re, which
may be attributed to activated muiti-slip planes as increased Re. Solid
solution effect of Re not only rely on orientations, but also on Re
content. Softening effect occurs in both [100] and [110] Mo-5Re.
while, strong strengthening effect happens in [110] Mo-14Re and
Mo-42Re. Our research clarifies that Mo-Re alloys with [110]
orientation / texture could be preferred to obtain good strengthening
effect.