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首页> 外文会议>International Conference on Advances in Energy, Environment and Chemical Engineering >Effect of Calcium Addition on the Rolled Microstructure of a Kind of HSLA Steel
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Effect of Calcium Addition on the Rolled Microstructure of a Kind of HSLA Steel

机译：钙添加对一种HSLA钢轧制微观结构的影响

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The rapid development of the large steel structure brings a great opportunity for steelmaking industry. The steel plates not only have the strength and toughness but also can withstand the high energy input welding. Using the calcium oxide of high melting-point and high stability to pin the grain boundaries is an effective method to improve the welding performance of the structure steel. Calcium was added into molten steel in the form of Ca-Si alloy using the special process in the experiment. A kind of HSLA steel containing Ca was prepared by means of the vacuum induction melting and controlled rolling and controlled cooling experiments. The effect of calcium addition on the rolled microstructure of HSLA steel was analysed. The results show that the addition of Ca elements has a significant effect on the microstructure of the rolled steel. The rolled microstructure of the experimental steel consists of polygonal ferrite and granular bainite and small amount of pearlite. The emergence of bainite is favorable to the strength and toughness of the experimental steel.
机译：大型钢结构的快速发展为炼钢行业带来了一个很好的机会。钢板不仅具有强度和韧性，还可以承受高能量输入焊接。使用高熔点的氧化钙和高稳定性销晶界是改善结构钢的焊接性能的有效方法。使用实验中的特殊过程以Ca-Si合金的形式加入碳水钢中。通过真空感应熔化和控制的轧制和受控的冷却实验制备一种含有Ca的HSLA钢。分析了钙加入对HSLA钢轧制微观结构的影响。结果表明，加入Ca元素对轧制钢的微观结构具有显着影响。实验钢的轧制微观结构包括多边形铁氧体和颗粒状贝氏体和少量珠光体。贝氏体的出现有利于实验钢的强度和韧性。

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