| Zr（Fe,Cr）2金属间化合物的氧化 |
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| 引用本文： | 周邦新 李聪. Zr（Fe,Cr）2金属间化合物的氧化[J]. 核动力工程, 1993, 14(2): 149-153,190 |
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| 作者姓名： | 周邦新 李聪 |
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| 作者单位： | 中国核动力研究设计院，中国核动力研究设计院，中国核动力研究设计院 成都 610005，成都 610005，成都 610005 |
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| 基金项目： | 腐蚀科学开放研究实验室资助 |
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| 摘 要： | 用非自耗电弧炉熔炼了比值(重量比值)不同的Zr(Fe,Cr)_2,并在773K和973K的空气中氧化。经X射线衍射和电子衍射分析表明:当Fe/Cr≤4.5时,Zr(Fe,Cr)_2,是MgZn_2型(六方)的Laves相,它的晶格常数随Fe/Cr比增加而收缩。Zr(Fe,Cr)_2氧化后生成的稳定氧化物是单斜ZrO_2和六方(Fe,Cr)_2O_3。在形成稳定氧化物之前,还会出现亚稳定的立方ZrO_2。根据本实验结果讨论了Zr-4合金中Zr(Fe,Cr)_2第二相对腐蚀性能的影响。
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| 关 键 词： | 氧化 锆合金 色壳材料 腐蚀 |
The Oxidation of Zr(Fe,Cr)_2 Metallic Compound |
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| Zhou Bangxin Li Cong Huang Decheng. The Oxidation of Zr(Fe,Cr)_2 Metallic Compound[J]. Nuclear Power Engineering, 1993, 14(2): 149-153,190 |
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| Authors: | Zhou Bangxin Li Cong Huang Decheng |
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| Abstract: | The oxidation of Zr(Fe,Cr)_2 with different Fe/Cr ratio prepared by non-consumable arc melting is carried out in air at 773K and 973K. The results analysed by X-ray or electron diffraction show that the Zr(Fe,Cr)_2 with Fe/Cr<4.5 is MgZn_2 type Laves phase, and its lattice parameters decrease with the increase of Fe/Cr ratio, the products after oxidation of Zr(Fe, Cr)_2 are ZrO_2 (monoclinic) and (Fe, Cr)_2O_3 (hexagonal). Before the formation of stable oxides, a meta-stable ZrO_2 with cubic lattice structure appeared. Based on the results obtained in present work, the effect of Zr(Fe,Cr)_2 second phase particles existing in Zircaloy-4 on the oxidation resistance is discussed. |
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| Keywords: | Zircaloy-4 Zr(Fe Cr)_2 Compound Oxidation |
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