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材料工程  2014, Vol. 0 Issue (1): 6-11    DOI: 10.3969/j.issn.1001-4381.2014.01.002
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
真空搅拌铸造制备SiC颗粒增强ADC12铝基复合材料及其力学性能表征
吴星平1,2, 石锦罡1,2,3, 吴昊1,2, 陈名海2, 刘宁1, 李清文2
1. 合肥工业大学 材料科学与工程学院, 合肥 230009;
2. 中国科学院 苏州纳米技术与纳米仿生研究所, 江苏 苏州 215123;
3. 中国船舶重工集团公司 第十二研究所, 陕西 兴平 713102
Preparation and Mechanical Properties of SiC Particulate-reinforced ADC12 Aluminum Matrix Composite by Vacuum Stir Casting
WU Xing-ping1,2, SHI Jin-gang1,2,3, WU Hao1,2, CHEN Ming-hai2, LIU Ning1, LI Qing-wen2
1. School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China;
2. Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123, Jiangsu, China;
3. No.12 Research Institute, China Shipbuilding Industry Corporation, Xingping 713102, Shaanxi, China
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摘要 以SiC/Cu复合包裹粉体为增强相,采用真空搅拌铸造技术制备SiC/ADC12铝基复合材料,研究制备工艺条件对复合材料力学性能的影响,同时借助X射线衍射(XRD)和扫描电子显微镜(SEM)等测试分析手段对其物相结构进行表征。结果表明:SiC/Cu复合粉体显著改善了SiC颗粒在熔融铝合金基体中的润湿性和分散性。当搅拌温度为580℃,搅拌时间为30min,复合粉体添加量为4%(质量分数)时,复合材料获得最佳的力学性能,拉伸强度283MPa,硬度HB133,较基体合金分别提高24.1%和77.3%,较普通SiC增强复合材料提高15.5%和26.7%。
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吴星平
石锦罡
吴昊
陈名海
刘宁
李清文
关键词 SiC/Cu复合包裹粉体真空搅拌铸造力学性能    
Abstract:SiC/Cu composite powders were adopted to fabricate SiC particulate-reinforced ADC12 aluminum alloy matrix composite by vacuum stir casting technique, and the influence of preparation process on the mechanical properties of composite was investigated and optimized. The composites were characterized by X-ray diffractometry (XRD) and scanning electron microscopy (SEM).The results show that dispersity and wetting ability of SiC particles in molten aluminum alloy matrix are significantly improved by SiC/Cu composite powders. At the condition of T=580℃, t=30min, and SiC content (w=4%), the composite attains the best mechanical properties. Its tensile strength and hardness reach 283MPa and HB133, respectively, which are improved by 24.1% and 77.3%, compared with ADC12 alloy matrix. It also shows obvious increase by 15.5% in tensile strength and 26.7% in hardness, respectively, compared to the composite with only bare SiC addition.
Key wordsSiC/Cu composite powder    vacuum stir casting    mechanical property
收稿日期: 2012-04-29     
1:  TB331  
基金资助:江苏省产学研前瞻性联合创新项目(BY2009129);苏州市科技项目(ZXG2012007,SWG0905)
通讯作者: 陈名海(1978- ),男,博士,副研究员,从事金属基复合材料研究,联系地址:江苏省苏州市苏州工业园区若水路398号中国科学院苏州纳米技术与纳米仿生研究所 (215123)     E-mail: mhchen2008@sinano.ac.cn
作者简介: 吴星平(1987- ),男,硕士研究生,从事金属基复合材料研究,联系地址:江苏省苏州市苏州工业园区若水路398号中国科学院苏州纳米技术与纳米仿生研究所 (215123),E-mail:xpwu2011@sinano.ac.cn
引用本文:   
吴星平, 石锦罡, 吴昊, 陈名海, 刘宁, 李清文. 真空搅拌铸造制备SiC颗粒增强ADC12铝基复合材料及其力学性能表征[J]. 材料工程, 2014, 0(1): 6-11.
WU Xing-ping, SHI Jin-gang, WU Hao, CHEN Ming-hai, LIU Ning, LI Qing-wen. Preparation and Mechanical Properties of SiC Particulate-reinforced ADC12 Aluminum Matrix Composite by Vacuum Stir Casting. Journal of Materials Engineering, 2014, 0(1): 6-11.
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