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The hot deformation characteristics of GH738 superalloy over the temperature range of 1000 °C to 1200 °C and strain range of 0.01 s−1 to 10.0 s−1 under a strain of 1.0 s−1 were investigated through hot compression tests with a Gleeble-1500 simulation machine. The flow stress reached peak value before flow softening occurred. The average apparent activation energy (Q) of GH738 was calculated to be...
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