| 含稀土高铬铸铁抗高温氧化机制 |
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| 引用本文： | 郭万根,刘越.含稀土高铬铸铁抗高温氧化机制[J].物理测试,2011,29(5):15-19. |
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| 作者姓名： | 郭万根 刘越 |
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| 作者单位： | 1. ??????????????????????? 100039 ; 2. ???????????????????????? ???? 110819 |
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| 摘 要： | 观察分析了不同稀土添加量高铬铸铁的铸态微观组织；通过对不同氧化温度和保温时间下不同稀土添加量的高铬铸铁高温氧化过程的对比，探讨了含稀土高铬铸铁抗高温氧化机制。研究结果表明：随着稀土元素的加入，高铬铸铁组织中晶粒得到了明显细化，碳化物形状发生了变化；高铬铸铁单位面积上氧化增重随时间变化遵循抛物线规律；稀土质量分数为0％～...
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| 关 键 词： | 高铬铸铁 稀土元素 微观组织 高温氧化 |
Research on Oxidation Resistance of High Chromium Cast Iron With Different RE Adding at High-Temperature |
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| GUO Wan-gen,LIU Yue.Research on Oxidation Resistance of High Chromium Cast Iron With Different RE Adding at High-Temperature[J].Physics Examination and Testing,2011,29(5):15-19. |
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| Authors: | GUO Wan-gen LIU Yue |
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| Affiliation: | 1. China Railway Resources Group Co.,Ltd., Beijing 100039, China ; 2. College of Material and Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China |
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| Abstract: | The cast microstructure of high chromium cast iron with different RE adding was analyzed.According to the comparison of experiment results under variable conditions(different oxidation-temperature,duration of holding time and kinds of RE),the mechanism of oxidation resistance of high chromium cast iron at high-temperature was discussed.It can be concluded that the grain is refined and the shape of carbide is changed;the oxidation weight(per area) changes over time following the rule of a parabola;the oxidat... |
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| Keywords: | high chromium cast iron rare-earth elements microstructure high temperature oxidation |
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