| 稀土化合物增强ZA—27合金耐磨性的研究 |
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| 引用本文： | 赵浩峰,张凤林.稀土化合物增强ZA—27合金耐磨性的研究[J].中国稀土学报,1999,17(3):227-230. |
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| 作者姓名： | 赵浩峰 张凤林 |
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| 作者单位： | 太原理工大学材料科学及工程系!太原030024 |
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| 基金项目： | 山西省归国留学人员基金 |
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| 摘 要： | 对稀土化合物增强ＺＡ－２７合金的组织及耐磨性做了研究。试验发现，由于在ＺＡ－２７合金中加入一定量的ＥＲ和Ｓｉ元素，组织中出现一些颗粒状第二相；这些物相分布在晶界及枝晶间，阻止了晶粒长大。通过航向电镜能谱分析发现，该物相是一种含有Ｚｎ、Ａｌ、Ｓｉ及ＲＥ元素的复杂化合物。经测试，这种物相的显微硬度要比基体高得多。耐磨性等性能试验结果表明，这种合金的耐磨性要比ＺＡ－２７合金高４倍，比Ｓｉ相增强合金也高，
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| 关 键 词： | 稀土 硅 锌铝合金 耐磨性 |
| 修稿时间： | 19980623 |
Wear-Resistance
Performance of ZA-27 Alloy Reinforced by
Rare Earth Compounds |
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| Zhao Haofeng,Li Yonglian,Zhao Peilian.Wear-Resistance
Performance of ZA-27 Alloy Reinforced by
Rare Earth Compounds[J].Journal of the Chinese Rare Earth Society,1999,17(3):227-230. |
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| Authors: | Zhao Haofeng Li Yonglian Zhao Peilian |
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| Abstract: | The morphology of ZA 27 alloy reinforced by RE compounds and its wear resistance were studied. It is found that some nodular second phases appear in the ZA 27 alloy containing Si and RE which disperse on grain boundaries or between dendrite crystals so that the alloy can be refined. Energy spectrum analysis of scanning electron microscope shows that the second phases are complex compounds containing RE, Al, Zn and Si. The micro hardness test indicates that the compounds possess higher micro hardness values than those of matrix. It is also discovered by wear experiment that the wear resistance of ZA 27 alloy reinforced by RE compounds is 4 times as high as that of ZA 27 alloy and also higher than that of the ZA 27 alloy containing Si phase, and the impact toughness of the alloy containing RE and Si is higher than that of the alloy containing Si. |
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| Keywords: | Rare earths Silicon Al Zn alloy Wear resistance |
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