Nb微合金化E36造船钢板控轧控冷实验研究  

EXPERIMENT AND RESEARCH OF CONTROLLED ROLLING AND CONTROLLED COOLING FOR Nb-MICROALLOYED SHIP-MAKING STEEL PLATE E36

作　　者：孙卫华[1] 李洪春[1] 孙传水[1] 

机构地区：[1]济南钢铁集团总公司钢研所

出　　处：《轧钢》1998年第1期23-26,共4页Steel Rolling

摘　　要：通过对Ｎｂ微合金化Ｅ３６高强度船体结构钢板的控轧控冷实验研究，分析了控轧控冷工艺对钢力学性能、晶粒组织及析出物的影响，并对控轧控冷Ｎｂ微合金化钢的强化机理进行了探讨。得出所研究钢的最优终轧温度和冷却速度分别为８１０℃和２℃／ｓ，给出了钢板屈服强度与结晶组织、附加屈服应力与析出相粒子之间的关系。By means of the experiment and research of controlled rolling and controlled cooling of Nb-microalloyed high-strength ship-making steel plate E36, the influence of controlled rolling and controlled cooling on mechanical properties, crystal structure and educt of the steel is analyzed, and the strengthening mechanism of Nb-microalloyed steel made by controlled rolling and controlled cooling is resear ched. The optimum finishing temperature and cooling rate of the steel are respectively 810℃ and 2℃/S. The relationship between yield strength of steel plate and crystal structure as well as the relationship between additional yield stress and educt grain is given out.

关 键 词：轧钢 微合金化 控轧控冷 力学性能 船用 钢板 

分 类 号：TG33[金属学及工艺—金属压力加工] U668.2[交通运输工程—船舶及航道工程]