| AZ91D镁合金的触变成形及其磨损性能的研究 |
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| 引用本文： | 陈体军,李元东,马颖,郝远.AZ91D镁合金的触变成形及其磨损性能的研究[J].材料开发与应用,2005,20(1):4-8. |
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| 作者姓名： | 陈体军 李元东 马颖 郝远 |
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| 作者单位： | 1. 兰州理工大学,甘肃省有色金属新材料重点实验室,甘肃,兰州,730050;中国科学院兰州化学物理研究所,固体润滑国家重点实验室,甘肃,兰州,730000
2. 兰州理工大学,甘肃省有色金属新材料重点实验室,甘肃,兰州,730050 |
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| 基金项目： | 国家重点实验室基金
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兰州理工大学校科研和教改项目 |
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| 摘 要： | 研究了加热时间和模具预热温度对AZ91D镁合金触变成形性、组织和磨损性能的影响。结果表明,适合AZ91D镁合金触变成形的最佳加热时间为90min(在585℃),模具预热温度为350℃;在此工艺条件下,初生相颗粒较圆整、粒度较小,组织最致密,相应地,其耐磨性也最好;与金属型铸造相比,明显地提高了耐磨性。
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| 关 键 词： | AZ91D镁合金 触变成形 组织 耐磨性 |
| 文章编号： | 1003-1545(2005)01-0004-05 |
| 修稿时间： | 2004年9月21日 |
Study on the Thixoforming and Wear Behavior of AZ91D Magnesium Alloy |
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| CHEN Ti-jun,LI Yuan-dong,MA Ying,HAO Yuan.Study on the Thixoforming and Wear Behavior of AZ91D Magnesium Alloy[J].Development and Application of Materials,2005,20(1):4-8. |
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| Authors: | CHEN Ti-jun LI Yuan-dong MA Ying HAO Yuan |
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| Abstract: | The effects of heating duration and mould temperature on thixoformability, microstructure and wear behavior of AZ91D alloy were investigated. The results indicated that the optimum heating duration at 585℃ was 90 min and mould temperature was 350℃. A compact microstructure with small and spherical primary particles was obtained under these conditions and the resulting alloy had the best wear resistance. Compared with the permanent mould casting, the thixoforming process decreased the porosity significantly, and improved the wear resistance obviously. |
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| Keywords: | AZ91D magnesium alloy Thixoforming Microstructure Wear resistance |
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