精品文档---下载后可任意编辑Ni 和 RE 的复合添加对 AZ102 镁合金组织和性能的影响的开题报告摘要：镁合金因其重量轻、比强度高等优异特性被广泛讨论和应用。本讨论以 AZ102 镁合金为讨论对象，利用 Ni 和 RE 元素进行复合添加，并通过金相显微镜、扫描电子显微镜、硬度测试和拉伸试验等手段讨论了不同添加量下 Ni 和 RE 对 AZ102 镁合金组织和性能的影响。结果表明，随着 Ni 和 RE 添加量的增加，AZ102 镁合金的晶粒尺寸和析出物含量均有所增加；同时，在一定添加量范围内，Ni 和 RE 的复合添加可以有效提高 AZ102 镁合金的硬度和拉伸强度，但过高的添加量会导致材料韧性下降。因此，本讨论为深化探究 Ni 和 RE 在镁合金中的应用提供了一定参考。关键词：AZ102 镁合金，Ni，RE，复合添加，组织，性能Abstract:Magnesium alloys are widely studied and applied because of their excellent characteristics such as low weight and high specific strength. In this study, AZ102 magnesium alloy was used as the research object, and Ni and RE elements were used for composite addition. The effects of Ni and RE on the microstructure and properties of AZ102 magnesium alloy were investigated through metallographic microscope, scanning electron microscope, hardness test and tension test. The results show that with the increase of Ni and RE addition, the grain size and precipitation amount of AZ102 magnesium alloy increase. At the same time, within a certain range of addition, the composite addition of Ni and RE can effectively improve the hardness and tensile strength of AZ102 magnesium alloy, but excessive addition will lead to a decrease in the toughness of the material. Therefore, this study provides a certain reference for the further exploration of the application of Ni and RE in magnesium alloys.Keywords: AZ102 magnesium alloy, Ni, RE, composite addition, microstructure, properties
