王晓东,郭锋,包喜荣,王宝峰

• 1:内蒙古科技大学矿业与煤炭学院
• 2:内蒙古工业大学材料科学与工程学院
• 3:内蒙古科技大学材料与冶金学院

摘要(Abstract)：

以P110钢级石油套管30Mn Cr22为研究对象,采用Gleeble-1500D热模拟实验机进行多道次热压缩实验,模拟其PQF轧管生产中的穿孔、连轧及减径过程,分析每个变形阶段的再结晶行为及组织演变规律,为基于PQF的无缝钢管轧制热机械控制工艺(TMCP)的实现提供实验依据。研究结果表明,在穿孔、连轧和减径3个变形阶段均可以通过不同的再结晶控制轧制策略来细化晶粒,从而实现TMCP。特别是减径过程中通过应变累积实现动态再结晶,并通过随后的快速冷却,能够得到晶粒细小、强韧性好的最终组织性能。所以控制轧制与控制冷却的良好配合是实现TMCP的关键。

关键词(KeyWords)： PQF轧管机;热机械控制工艺;再结晶;微观组织;控制轧制与控制冷却

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51461034);; 内蒙古自治区自然科学基金(2014MS0532);; 内蒙古科技大学创新基金(2014QDL036)

作者(Author): 王晓东,郭锋,包喜荣,王宝峰

DOI: 10.13289/j.issn.1009-6264.2015.s2.011

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