Microstructural Evolution of X45CrNiW189 Valve Steel During Hot Deformation
نویسندگان
چکیده مقاله:
The hot compression tests were carried on X45CrNiW189 valve steel (X45) in the temperature range of 1000– 1200 °C and the strain rate range of 0.004 – 0.5 s-1 in order to study the high temperature softening behavior of this steel. For the exact prediction of flow stress, the effective stress-effective strain curves were obtained from experiments under various conditions. On the basis of experimental results, the dynamic recrystallization fraction (DRX), austenite grain size (AGS), hot deformation and activation energy behavior were investigated. It was found that the calculated results were in a good agreement with the experimental flow stress and the microstructure of the steel for different conditions of hot deformation.
منابع مشابه
microstructural evolution of x45crniw189 valve steel during hot deformation
the hot compression tests were carried on x45crniw189 valve steel (x45) in the temperature rangeof 1000– 1200 °c and the strain rate range of 0.004 – 0.5 s-1 in order to study the high temperaturesoftening behavior of this steel. for the exact prediction of flow stress, the effective stress-effectivestrain curves were obtained from experiments under various conditions. on the basis of experimen...
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عنوان ژورنال
دوره 11 شماره 1
صفحات 31- 34
تاریخ انتشار 2015-03-01
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