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| 超低速压铸过共晶Al-Si合金的组织及力学性能研究 | |
| 引用本文： | 万谦,董普云,白砚飞,高军民,付广林,赵海东.超低速压铸过共晶Al-Si合金的组织及力学性能研究[J].特种铸造及有色合金,2011,31(3):242-245,192. |
| 作者姓名： | 万谦 董普云 白砚飞 高军民 付广林 赵海东 |
| 作者单位： | 1. 华南理工大学国家金属材料近净成形工程技术研究中心 2. 广东文灿压铸有限公司 3. 上海通用东岳动力总成有限公司 |
| 基金项目： | 教育部新世纪优秀人才支持计划资助项目，中央高校基本科研业务费专项资助项目 |
| 摘 要： | 采用图像定量分析软件,研究了超低速压铸条件下,过共晶Al-Si合金压铸件不同壁厚处Si的等积圆直径da及Si的面积分数fSi的变化以及Si颗粒直径对本体试样抗拉强度和硬度的影响规律。结果表明,随着壁厚的增加(A部位壁厚为5mm、B部位壁厚为9mm和C部位壁厚为15mm),初生Si的da(A部位为18μm、B部位为46μm和C部位为82μm)和fSi(A部位为16.2%、B部位为25.8%和C部位为33.7%)均增大,并且da越大,压铸件的力学性能越好。 |
| 关 键 词： | Al-Si合金 超低速压铸 微观组织 力学性能 |
Microstructure and Mechanical Properties of Super Slow Speed Die Casting Hypereutectic Al-Si Alloy |
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| Wan Qian,Dong Puyun,Bai Yanfei,Gao Junmin,Fu Guanglin,Zhao Haidong.Microstructure and Mechanical Properties of Super Slow Speed Die Casting Hypereutectic Al-Si Alloy[J].Special Casting & Nonferrous Alloys,2011,31(3):242-245,192. | |
| Authors: | Wan Qian Dong Puyun Bai Yanfei Gao Junmin Fu Guanglin Zhao Haidong |
| Affiliation: | Wan Qian1,Dong Puyun1,Bai Yanfei1,Gao Junmin2,Fu Guanglin3,Zhao Haidong1 (1. National Engineering Research Center of Near-net Shaped Forming for Metallic Materials,South China University of Technology,Guangzhou,China,2. Guangdong Wencan Die Casting Co.,Ltd.,Foshan,3. Shanghai General Motor Dongyue Power Assembly Co.,Yantai,China) |
| Abstract: | Using digital quantitative image analysis system, effects of variation of equivalent area diameter and average area fraction of primary Si phase in different positions and Si particle diameters in super slow speed die casting hypereutectic Al-Si alloy on tensile strength and hardness of the alloy were investigated. The results reveal that with increasing in wall thickness, equivalent area diameter and equivalent area fraction of primary Si phase are increased. In addition, with increasing in equivalent area... |
| Keywords: | Hypereutectic Al-Si Alloy Super Low Speed Die Casting Microstructure Mechanical Properties |
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