| 微量稀土对7075合金组织和性能的影响 |
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| 引用本文： | 黎文献,曹标,吴向平,杨淑萍,周东海.微量稀土对7075合金组织和性能的影响[J].中南大学学报(自然科学版),1992(4). |
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| 作者姓名： | 黎文献 曹标 吴向平 杨淑萍 周东海 |
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| 作者单位： | 中南工业大学，中南工业大学，中南工业大学，西南铝加工厂，西南铝加工厂 |
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| 摘 要： | 对含混合稀土为0.061wt％以下的四个不同含量的7075合金,进行了典型物理性能、主要力学性能测试和显微组织分析,结果表明:混合稀土含量较低时(0.0136wt％),对7075合金各项性能没有明显影响;含量达0.061wt％时,对7075合金有强化作用,但断裂韧性和拉压疲劳强度有下降趋势,并且能生成复杂的(MgAlCrCuZnRE)相。
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| 关 键 词： | 稀土元素 铝合金 |
EFFECT OF TRACE RARE-EARTH ELEMENTS ON MICROSTRUCTURE AND PROPERTIES OF 7075 ALUMINIUM ALLOY |
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| Li Wenxian,Cao Biao,Wu XiangPing,Yang Shuping,Zhou Donghai Central South University of Technology South-West Aluminium Fabrication Plant.EFFECT OF TRACE RARE-EARTH ELEMENTS ON MICROSTRUCTURE AND PROPERTIES OF 7075 ALUMINIUM ALLOY[J].Journal of Central South University:Science and Technology,1992(4). |
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| Authors: | Li Wenxian Cao Biao Wu XiangPing Yang Shuping Zhou Donghai Central South University of Technology South-West Aluminium Fabrication Plant |
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| Institution: | Li Wenxian;Cao Biao;Wu XiangPing;Yang Shuping;Zhou Donghai Central South University of Technology South-West Aluminium Fabrication Plant |
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| Abstract: | The physical, mechanical properties and microstructures of four 7075 aluminium alloys contai-ning less than 0. 061% mixed rare-earth elements have been studied. It has been silown that therare-earth has no effect on the properties of the alloy when the content of the rare-earth is0. 0136wt-%, However, when the content of the rare-earth is up to 0. 061wt-%, the adding of rera-earthincreases the strength of the alloy, but slightly decreases the fracture toughness and the tensilecompression fatigue strength, and forms a comvlicated phase (MgAlCrCuZnRE) in the alloy. |
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| Keywords: | RE element aluminium alloy |
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