高强度船板在两相区的正火

Dual Phase Normalization of High Strength Ship Steel Plate

高强度船板第一次正火后力学性能不合格，又在两相区加热进行不完全奥氏体化正火试验，产生了细粒状贝菌体组织，使高强度船板力学性能满足了标准的要求。

The mechanical properties of high-strength ship steel plate did not reach the standard required after the first normalization,therefore incomplete dual phase aust enizing normalization experiment has been done,and fine grain Bainite structure in the steel is found,improving mechanical properties of high strength ship steel plate and meeting the standard requirement.