| 铝含量对无铅硅黄铜组织及性能的影响 |
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| 引用本文： | 李丹阳,刘平,张柯,刘新宽,陈小红.铝含量对无铅硅黄铜组织及性能的影响[J].上海理工大学学报,2017,38(6):311-316. |
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| 作者姓名： | 李丹阳 刘平 张柯 刘新宽 陈小红 |
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| 作者单位： | 上海理工大学 材料科学与工程学院, 上海 200093,上海理工大学 材料科学与工程学院, 上海 200093;上海理工大学 机械工程学院, 上海 200093,上海理工大学 材料科学与工程学院, 上海 200093,上海理工大学 材料科学与工程学院, 上海 200093,上海理工大学 材料科学与工程学院, 上海 200093 |
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| 基金项目： | 国家自然科学青年基金项目（51301106） |
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| 摘 要： | 利用光学显微镜（OM）、扫描电子显微镜（SEM）、X射线衍射仪（XRD）及电化学腐蚀试验、拉伸试验和切削试验等，观察并研究了Al的质量分数分别为0%，0.2%，0.4%和0.6%的65CuZn3Si无铅硅黄铜的微观组织、腐蚀性能、力学性能和切削性能.结果表明：当加入Al元素后，合金中开始出现富含P，Al，Mg的纳米级黑色小颗粒状质点，并且随着Al含量的增加，黑色质点的数量也随之增多，合金切削性能明显提高.合金的抗拉强度随Al含量的增加而增大，相应地伸长率有所下降，但仍能保持在12%左右.当Al的质量分数为0.6%时，65CuZn3Si合金的切削性能和力学性能达到最佳.
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| 关 键 词： | 硅黄铜 铝 微观组织 电化学腐蚀 切削性能 |
| 收稿时间： | 2017/3/2 0:00:00 |
Effect of Al Content on Microstructure and Properties of Lead-free Silicon Brass |
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| LI Danyang,LIU Ping,ZHANG Ke,LIU Xinkuan and CHEN Xiaohong.Effect of Al Content on Microstructure and Properties of Lead-free Silicon Brass[J].Journal of University of Shanghai For Science and Technology,2017,38(6):311-316. |
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| Authors: | LI Danyang LIU Ping ZHANG Ke LIU Xinkuan and CHEN Xiaohong |
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| Institution: | School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China,School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China,School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China,School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China and School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China |
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| Abstract: | Microstructure of 65CuZn3Si alloy with different aluminum content(0%,0.2%,0.4%,0.6%) was studied by optical microscope(OM),scanning electron microscopy(SEM),X-ray diffraction(XRD)analysis,and the corrosion,mechanical and cutting properties of the alloy were evaluated through the electrochemical corrosion test,tensile test and cutting test.The results indicate that after modifying with Al,the rich P,Al,Mg new nano-scale precipitates is observed in the alloy.Meanwhile,the quantity of the new nano-scale precipitates and cutting property of the alloy increase significantly with the addition of Al content.Tensile strength of the alloy increases and the elongation keeps above 12%.When the Al content reaches 0.6%,the cutting property and the mechanical property of 65CuZn3Si alloy achieve the best. |
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| Keywords: | silicon brass Al microstructure electrochemical corrosion cutting property |
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