| SiCp／ZA27复合材料在半固态等温热处理中的组织演变 |
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| 引用本文： | 陈体军,狄杰建,马颖,郝远. SiCp／ZA27复合材料在半固态等温热处理中的组织演变[J]. 热加工工艺, 2001, 0(3): 18-20 |
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| 作者姓名： | 陈体军 狄杰建 马颖 郝远 |
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| 作者单位： | 甘肃工业大学材料科学与工程学院 |
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| 摘 要： | 研究了Zr变质处理的SiCp／ZA27复合材料在半固态温度保温过程中的组织演变情况，并与基体合金作了对比。结果表明：经0．6％Zr处理SiCp/ZA27复合材料在460℃保温30－40min可获得良好的半固态成形所需的组织；复合材料的组织演变速率比基体合金的快，且在长时间保温（＞40min）时，其组织的粗化现象不如基体合金明显。
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| 关 键 词： | 锌基复合材料 半固态 等温热处理 组织 碳化硅 |
| 文章编号： | 1001-3814(2001)03-0018-03 |
| 修稿时间： | 2000-11-23 |
Microstructural Evolutionof SiCp/ZA27 Composite during Semi-solid Isothermal Treatment |
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| CHEN Ti-jun,DI Jie-jian,MA Ying,HAO Yuan. Microstructural Evolutionof SiCp/ZA27 Composite during Semi-solid Isothermal Treatment[J]. Hot Working Technology, 2001, 0(3): 18-20 |
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| Authors: | CHEN Ti-jun DI Jie-jian MA Ying HAO Yuan |
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| Abstract: | The microstructural evolution of SiCp/ZA27 composite modified by Zr element was investigated during isothermal heat treatment at semi-solid temperature,and compared with that of ZA27 alloy.The results indicated that the ideal microstructure for thixo-forming of SiCp/ZA27 composite could be obtained through isothermal heat treatment for 30～40 min at 460℃.The speed of structural evolution of the composite was rapider than that of ZA27 alloy,and the structure coarsening phenomenon of the composite wasn't obvious when treated over 40 min. |
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