杨剑,周谟金,王志杰,蒋业华,隋育栋

• 1:昆明理工大学材料科学与工程学院

摘要(Abstract)：

采用重力铸渗法制备了ZTA/高锰钢(Mn17Cr2)基复合材料，利用分离式霍普金森压杆(SHPB)对其在高应变速率(975、1060、1581、2664和3193 s~(-1))下进行动态压缩实验，分析了复合材料在不同应变速率下的动态力学行为。结果表明：当应变速率从975 s~(-1)增加到3139 s~(-1)时，复合材料的加工硬化现象越明显，屈服强度与抗压强度都增加了约2倍，加工硬化率增加了2.7倍以上，显微硬度也从318.3 HV0.1增加到了505.4 HV0.1;随着应变速率的增大，基体和ZTA颗粒的局部结合处在很短时间内积聚了大量热量导致温度升高，这会使基体出现因热软化而导致的熔化现象。

关键词(KeyWords)： 氧化锆增韧氧化铝(ZTA);高锰钢;复合材料;分离式霍普金森压杆

Abstract:

Keywords:

基金项目(Foundation): 云南省基础研究计划(202401AT070320)

作者(Author): 杨剑,周谟金,王志杰,蒋业华,隋育栋

DOI: 10.13289/j.issn.1009-6264.2024-0270

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