摘要
高性能管材被广泛应用于航空航天、汽车以及核电等领域的核心管路系统,起着介质传输和结构承载等重要作用。皮尔格冷轧成形工艺因其道次变形量大、尺寸精度高、表面质量好等优点而成为钛合金和锆合金等难变形管材制造的优选工艺。然而,多道次冷轧结合中间和最终热处理的复杂热力加载历史使得冷轧中管材不均匀变形显著,导致管材微观织构演变规律复杂,进而影响管材后续成形及最终服役性能,如何有效预测和调控管材皮尔格冷轧成形全过程微观织构已成为高性能管材形性一体精确成形制造的瓶颈。本文首先概述了皮尔格冷轧成形技术的原理与特点,在此基础上系统总结介绍了高性能管材皮尔格冷轧宏观不均匀变形与细观织构演变数值建模方法的发展,并详细综述了高性能管材冷轧过程变形特征、织构演变机制与调控方法的国内外研究动态,针对目前研究中存在的不足和局限,分析展望了难变形管材多道次冷轧全过程微观织构精准调控及高性能制备尚待解决的问题及未来可能的发展方向。
The high-performance tubes are extensively applied in core systems in aviation, aerospace, automotive and many other industries, which playing an important role in fluid transmission and structural load-bearing. The characteristics involves large deformation, high dimension accuracy and surface quality makes cold pilgering a favorable fabrication technology for hard-to-deform tubes. However, the tube undergoes a complex thermal loading path of multi-pass cold pilgering combined with intermediate and final heat treatment. The significantly inhomogeneous deformation leads to the complex evolution characteristics and the uncertainty of texture, which will significantly affect the subsequent formability and in-service performance of the tube. How to effectively control texture during whole cold pilgering process become the bottleneck of high-perfor- mance manufacturing of the tubes. In this paper, the principle and characteristics of cold pilgering process are firstly delineated. Then the studies on numerical modelling of macro inhomogeneous deformation and texture evolution of tube cold pilgering, the deformation features as well as the texture evolution mechanism and controlling method during cold pilgering process are reviewed. Finally, in response to the shortcomings in current research, the challenges and prospect for the texture precise control and high-performance preparation in multi pass cold pilgering of difficult-to-deform tubes are articulated.
作者
魏栋
项豪特
李萌
弓满锋
李恒
楚志兵
WEI Dong;XIANG Haote;LI Meng;GONG Manfeng;LI Heng;CHU Zhibing(School of Mechanical and Electrical Engineering,Lingnan Normal University,Zhanjiang 524048,Guangdong,China;State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi’an,710072,China;School of Material and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China)
出处
《材料导报》
北大核心
2025年第12期185-195,共11页
Materials Reports
基金
广东省基础与应用基础研究基金联合基金青年基金(2023A1515110551)
国家自然科学基金(52375385,51775441)。
