Superplastic behavior of an extruded eutectic NiAl/Cr(Mo) alloy at intermediate strain rate region
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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.
KeywordsNiAl Gage Section Dynamic Recovery Constant Strain Rate Grain Boundary Slide
The authors would like to acknowledge the projects (05YB31) supported by the scientific research initial foundation for doctor of Shenyang Institute of Aeronautical Engineering.