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The microstructure evolution and deformation mechanisms of alloy Rene88DT prepared by ESR-CDS® during isothermal compression have been investigated by optical microscopy (OM), electron back scattered diffraction (EBSD) and transmission electron microscopy (TEM). The results showed that two cycles of dynamic recrystallization (DRX) occurred during the compressive deformation of the sample at super-solvus...
The hot deformation characteristics of Rene88DT superalloy with directionally solidified microstructure produced by electroslag remelting continuous directionally solidification (ESR-CDS®) were studied in the temperature range of 1,040–1,140 °C and strain rate range of 0.001–1.000 s−1 by hot compression tests. Flow curves for Rene88DT alloy with initial directionally solidified (DS) microstructure...
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