张嘉琪,丁华平,杨旭啸,马云飞,徐海博,曾钰涵,龚攀,王新云

• 1:华中科技大学材料科学与工程学院材料成形与模具技术全国重点实验室
• 2:松山湖材料实验室
• 3:深圳华中科技大学研究院

摘要(Abstract)：

通过放电等离子烧结技术制备了不同TiNi体积分数的TiNi/Zr_(55)Cu_(30)Al_(10)Ni_5块体非晶合金复合材料(BMGCs),研究了深冷循环处理对其微观组织、能量状态和室温力学性能的影响。结果表明：深冷循环处理后，不同TiNi体积分数的TiNi/BMGCs中TiNi合金颗粒中的B2相含量都有所提高，导致了相变诱导塑性效应的增强，TiNi/BMGCs的弛豫焓也存在一定程度得增加，非晶合金基体发生回春；深冷循环处理后，TiNi颗粒相变诱导塑性效应的增强与非晶基体回春的共同作用有效改善了TiNi/BMGCs的室温塑性，当TiNi体积分数低于50%时，TiNi/BMGCs室温塑性均提高了50%以上，其中20%TiNi含量的TiNi/BMGCs室温塑性提高了70%以上；但是当TiNi体积分数达到50%时，由于大量的界面脱粘，界面问题成为制约TiNi/BMGCs塑性提升的关键因素，力学性能改善不明显。

关键词(KeyWords)： 块体非晶合金复合材料;深冷循环;力学性能;马氏体相变

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金面上项目(52371154);; 广东省自然科学基金面上项目(2023A1515012158)

作者(Author): 张嘉琪,丁华平,杨旭啸,马云飞,徐海博,曾钰涵,龚攀,王新云

DOI: 10.13289/j.issn.1009-6264.2025-zt06

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