摘要
利用夏比冲击试验,研究了冲击吸收功、剪切断面率、侧膨胀值与温度之间的变化,对八钢生产的Q345qD钢板韧脆转变温度进行了界定。结果表明:Q345qD钢的韧脆转变温度区间为-50℃~-45℃。
The changes of impact absorption work, shear section ratio, side expansion value and temperature were studied by Charpy impact test.The ductile-brittle transition temperature of Q345 qD steel plate produced of Bayi Steelis was defined. The results show that the ductile-brittle transition temperature of Q345 qD steel ranges from-50 ℃ to-45 ℃.
引文
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