Superplastic behavior of an extruded eutectic NiAl/Cr(Mo) alloy at intermediate strain rate region

摘要

The superplastic behavior of cast and hot-extruded NiAl–28Cr–6Mo is observed in the strain rates between $ dot varepsilon $ = 1.04 × 10?3 and 5.02 × 10?2 s?1 at 1323–1373 K. The synchronous operation of dislocation glide and dynamic recovery is responsible for the tested alloy to exhibit superplastic behavior.