TRIP 钢无缝管的开发及其成形性分析
1. 东北大学现代设计与分析研究所,沈阳 110819;
2. 东北大学机械工程与自动化学院,沈阳 110819;
3. 东北大学轧制技术及连轧自动化国家重点实验室,沈阳 110819
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摘要
本文首次将趋于成熟的相变诱发塑性钢(TRIP 钢)生产技术应用到钢管的生产领域,以冷拔钢管为原料,分别利用两阶段热处理和连续热处理两种方式成功开发出具有铁素体、贝氏体、残余奥氏体和少量马氏体组织的薄壁TRIP 钢无缝管,并利用环形拉伸以及冷弯等试验手段对其成形性能进行了试验研究。研究结果表明,TRIP 钢无缝管具有较好的冷成形性能,可以在内高压成形等领域推广应用。另外,课题组开发的连续热处理设备完全可以用来生产TRIP钢管,为未来工业生产提供了重要参考。
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