屠晓倩,付亚波,龚超杰,桑逸婷,陈渝,崔静

• 1:台州学院
• 2:浙江省工量刃具检测及深加工重点实验室
• 3:中国民航大学机场学院

摘要(Abstract)：

添加稀土铈和硼,采用溶胶凝胶和粉末烧结制备了新型氧化铝弥散强化铜。通过维氏硬度仪、扫描电镜和光学显微镜研究了冷加工率和热处理对其性能的影响。结果表明:在Cu+Al_2O_3基体中加入修饰剂硼和铈后,合金的晶格发生畸变,晶粒尺寸变小,是弥散强化铜硬度提高的主要原因。加入稀土元素铈对提高弥散强化铜的硬度比添加硼更显著。在箱式加热炉中研究了400、600、700℃加热时对其致密度的影响,发现在600℃时添加微量铈和硼,是组织细化和提高致密度的最佳温度,而加入稀土元素铈则效果更佳。

关键词(KeyWords)： 弥散强化铜;退火温度;冷加工率;稀土铈

Abstract:

Keywords:

基金项目(Foundation): 全国大学生创新项目(201610350016);; 浙江省公益项目(2015C31143)

作者(Author): 屠晓倩,付亚波,龚超杰,桑逸婷,陈渝,崔静

DOI: 10.13289/j.issn.1009-6264.2017-0099

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