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- W2377304420 abstract "The influence of postweld heat treatment system on the impact ductility of Q690CFD in coarse grain zone was discussed.The results indicate that the point of 500 ℃ is brittle ductile transition temperature.According to the experimental results of metallurgical structure,SEM and energy spectrum,the carbide precipitation at original austenite grain boundary results in the brittle ductile transition.The carbide precipitation regularity was computed by Thermo-calc.The calculated results have good relationship with the test results.Finally,the postweld heat treatment regime of Shougang′s Q690CFD was optimized." @default.
- W2377304420 created "2016-06-24" @default.
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- W2377304420 date "2010-01-01" @default.
- W2377304420 modified "2023-09-25" @default.
- W2377304420 title "Study on Reheat Embitterment in Coarse-Grain Region of Heat Affected Zone (CGHAZ) of Q690CFD" @default.
- W2377304420 hasPublicationYear "2010" @default.
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