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| 添加合金元素Cu和Mn对锆合金中第二相的影响 | |
| 引用本文： | 曾奇锋,周邦新,姚美意,彭剑超,夏爽. 添加合金元素Cu和Mn对锆合金中第二相的影响[J]. 上海大学学报(自然科学版), 2008, 14(5): 531-536 |
| 作者姓名： | 曾奇锋 周邦新 姚美意 彭剑超 夏爽 |
| 作者单位： | 上海大学,材料研究所,上海,200072;上海大学,材料研究所,上海,200072;上海大学,材料研究所,上海,200072;上海大学,材料研究所,上海,200072;上海大学,材料研究所,上海,200072 |
| 摘 要： | 以Zr-4为母合金，分别添加电解纯铜或电解金属锰，用非自耗真空电弧炉熔炼了成分不同的6种锆合金.用透射电子显微镜观察了合金中第二相的形貌，用EDS分析了第二相的成分，用SAD确定了第二相的晶体结构.添加Cu元素的合金中有3种第二相：Zr(Fe,Cr)2粒子、Zr(Fe,Cr,Cu)2粒子和含少量Fe或不含Fe的Zr-2Cu粒子；添加Mn元素的合金中只有1种Zr(Fe,Cr,Mn)2第二相，且随着合金中Mn的质量分数从0.07%增加到0.35％，Zr(Fe,Cr,Mn)2粒子中Mn元素的质量分数也升高. |
| 关 键 词： | 锆合金 合金元素 显微组织 第二相 |
| 收稿时间： | 2008-07-09 |
Effect of Alloying Element (Cu and Mn) Additions on the Precipitates of Zr Alloys |
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| ZENG Qi-feng,ZHOU Bang-xin,YAO Mei-yi,PENG Jian-chao,XIA Shuang. Effect of Alloying Element (Cu and Mn) Additions on the Precipitates of Zr Alloys[J]. Journal of Shanghai University(Natural Science), 2008, 14(5): 531-536 | |
| Authors: | ZENG Qi-feng ZHOU Bang-xin YAO Mei-yi PENG Jian-chao XIA Shuang |
| Affiliation: | Institute of Materials, Shanghai University, Shanghai 200072, China |
| Abstract: | A series of zirconium alloys with copper and manganese additions in Zircaloy-4 were prepared using a vacuum non-consumable arc melting method. TEM observationwas carried out to characterize precipitates in alloys. The crystal structure was determined by a selected area electron diffraction (SAD) pattern, and the composition of precipitates was analyzed with energy dispersion spectroscopy (EDS). In the copper-added Zircaloy-4 specimens, three main precipitates were detected: (1) Zr(Fe,Cr)2 precipitates, (2) Zr(Fe,Cr,Cu)2 precipitates, and (3) Zr2Cuprecipitates with a bit of Fe or without Fe. In the manganese-added Zircaloy-4 specimens, only one kind of Zr(Fe,Cr,Mn)2 precipitate was observed. Mn content in the precipitates increased as the increase of Mn content from 0.07% to 0.35% in the alloy. |
| Keywords: | alloying element microstructure precipitates zirconium alloys |
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