通过在管线钢中添加Mn、Nb、V、Ti和Mo等合金元素与采用控轧控冷工艺可获得良好的微观组织和综合力学性能.具体论述了控轧控冷过程中合金元素和控轧控冷工艺参数对管线铜微观组织和力学性能的影响;同时分析了微合金元素(Nb、V、Ti)碳氮化物的析出行为.结果表明,在适当范围内降低终轧温度和终冷温度,提高轧后冷却速度和增大精轧总变形量都可有效改善钢的综合性能.
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