骆宏文,徐琨,张文昌,龙威,周小平

• 1:湖北工业大学材料与化学工程学院
• 2:湖北工业大学绿色轻工材料湖北省重点试验室

摘要(Abstract)：

以2024Al合金粉末为基体材料,纯Zr粉和纯Ti粉为增强体材料,采用粉末冶金原位合成的方法制备出了不同Al_3(Zr, Ti)含量的Al_3(Zr, Ti)/2024Al复合材料,并对其在500℃下进行热挤压变形处理,测试其组织与性能的变化。结果表明:在复合材料内部生成了不同含量的Al_3(Zr, Ti)增强相,且随着Al_3(Zr, Ti)生成量的增多,复合材料的硬度逐渐增加,抗拉强度呈现出先增大后减小的趋势,耐腐蚀性呈现出先上升后下降的趋势。复合材料的硬度和抗拉强度的最大值分别为209.7 HV0.01和427.11 MPa,相对于纯2024Al合金,分别提高了40.25%和37.89%;复合材料的最大腐蚀电位和最小腐蚀电流密度分别为-0.517 V和4.096×10~(-6) A/cm~2。

关键词(KeyWords)： 粉末冶金;原位合成;硬度;抗拉强度;耐腐蚀性

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 骆宏文,徐琨,张文昌,龙威,周小平

DOI: 10.13289/j.issn.1009-6264.2021-0127

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