RE对改良铸造铝硅合金力学性能的影响
The Influence of RE on the mechanical properties of optimized Al-Si casting alloy
范应光1，张修海2，汤宏群2，苏广才2（1-广西机电职业技术学院 2-广西大学材料科学与工程学院）
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作者单位：1-广西机电职业技术学院 2-广西大学材料科学与工程学院
中文关键字：稀土元素 铸造铝硅合金 力学性能
英文关键字： rare-earth element; Al-Si casting alloy; mechanical properties
中文摘要： 研究了RE对改良铸造铝硅合金力学性能的影响。研究结果表明，RE对改良铸造铝硅合金力学性能有着显著的影响。随着稀土元素加入量的增加，改良合金的强度、塑性均显著提高，但过多的稀土元素加入量由于致使改良合金形成大量的AlxV3CuRE化合物，反而会使改良铸造铝硅合金的力学性能恶化。
英文摘要：The Influence of RE on the mechanical properties of optimized Al-Si
casting alloy were investigated. Results showed that the Influence of RE on the mechanical properties of optimized Al-Si casting alloy are notable. With the increasing of rare-earth element, improving the strength and plasticity of optimized Al-Si casting alloy toughness heavily,but rare-earth element increase too much ,a large number AlxV3CuRE compound were shaped, instead of increasing,the mechanical properties of optimized Al-Si casting alloy are decline.