郝羿蜚,李乐,赵恒虎,彭珍珍

• 1:河北科技大学材料科学与工程学院
• 2:河北省材料近净成形技术重点实验室

摘要(Abstract)：

镁合金具有轻质、高比强度和比刚度、高导热性等优点，是推动航空航天、交通运输等领域高速发展的关键材料，其应用规模对于减少能耗、节约能源具有重要的作用。对镁合金塑性变形过程中向错的机理进行了综述，包括向错的概念、向错的基本模型和向错对镁合金中复杂变形过程的作用机理，如孪晶交互过程、扭折结构的形成及晶界迁移等。今后的研究可以将向错理论与传统位错理论结合，通过构建新型位错-向错反应模型解析镁合金内部缺陷的演化过程，并预测变形过程中缺陷密度的变化趋势，从而有效预防镁合金的失效现象。

关键词(KeyWords)： 镁合金;变形机制;孪晶交互;向错

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(81760750);; 河北省教育厅科学研究项目(BJK2022020)

作者(Author): 郝羿蜚,李乐,赵恒虎,彭珍珍

DOI: 10.13289/j.issn.1009-6264.2025-0036

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