张娜娜,李全安,陈晓亚,郑泽宇

• 1:河南科技大学材料科学与工程学院
• 2:有色金属新材料与先进加工技术省部共建协同创新中心
• 3:龙门实验室

摘要(Abstract)：

变形镁合金易产生强基面织构，使得其室温塑性较差、各向异性严重，极大地限制了其应用。研究发现通过对基面织构进行弱化可以有效地改善镁合金的塑性，而Gd、Y、Ce、Nd等稀土元素是镁合金有效的织构优化元素，这些稀土元素的添加可以引起材料本征参数的改变，进而改变位错运动的模式，提高非基面滑移活性，从而提高材料的成型能力。此外，采用不同的加工方式或者调整变形工艺参数，调控再结晶过程以及采用特殊的变形工艺等方法均可对镁合金的织构进行调控。因此，本文对近几年镁合金织构调控方面的研究成果进行了总结，详细讨论了以上几种方法对镁合金织构类型和强度的影响，为高强塑镁合金的设计和开发提供参考依据。

关键词(KeyWords)： 镁合金;织构调控;塑性;稀土元素

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(52201119);; 龙门实验室前沿探索课题(LMQYTSKT014);; 中原英才计划—中原青年拔尖人才([2021]44号);; 河南省自然科学基金(222300420435)

作者(Author): 张娜娜,李全安,陈晓亚,郑泽宇

DOI: 10.13289/j.issn.1009-6264.2023-0486

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