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对经正火处理的L360无缝管线钢利用控轧控冷工艺进行了双相钢开发,得到了铁素体-贝氏体双相组织,使试验钢的强韧性能提高20%以上。
The normalized L360 seamless line steel was developed by dual-phase steel controlled rolling and controlled cooling process. The ferrite-bainite dual-phase structure was obtained, and the toughness of the test steel was improved by more than 20%.