Research on Temperature Range of Q420qE Bridge Steel Flame Correction
In this paper,the influence of flame correction on the microstructure and mechanical properties of Q420qE bridge steel plate at different temperatures is studied.The results show that when the correction temperature is below 800 ℃,the mechanical properties and microstructure have no significant changes.When the correction temperature is greater than 900 ℃,the microstructure tends to grow.
bridge engineeringwelding of steel stuctureflame correctiontemperaturemechanical propertymicrostructure
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