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首页> 外文会议>第19届国际稀土永磁及应用研讨会（19th International Workshop on Rare Earth Permanent Magnets amp; Their Applications）（REPM'06） >Influence of Fe Content on Microstructure and Magnetic Properties of Melt-Spun SmCo-Based Alloy Ribbons
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Influence of Fe Content on Microstructure and Magnetic Properties of Melt-Spun SmCo-Based Alloy Ribbons

机译：铁含量对熔纺SmCo基合金薄带组织和磁性能的影响

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摘要

The microstructure and magnetic properties of melt-spun Sm(Co0.88-xFexCu0.10Zr0.02)7.5 (x = 0.1 and 0.2) alloy ribbons have been studied. The results showed that the as-spun ribbons were in a single phase, SmCo7, with the Cu7Tb structure. When aged in the temperature range from 720 to 900 ℃, the SmCo7 phase transformed into Sm2Co17, SmCo5, and CoFe(Zr) phases with a minor Sm2Co3 phase. For the x = 0.1 alloy, a large coercivity, Hc = 8.7 kOe, was observed although the soft magnetic CoFe(Zr) phase was present in the alloy. The volume fraction of the CoFe(Zr) phase increased when the ageing temperature increased from 720 to 760 ℃. At higher ageing temperature, the CoFe(Zr) phase was partially re-dissolved. With an increase in the Fe content in the alloy, the CoFe(Zr) phase increased significantly, causing the coercivity to decrease.
机译：研究了熔纺Sm（Co0.88-xFexCu0.10Zr0.02）7.5（x = 0.1和0.2）合金薄带的组织和磁性能。结果表明，初生碳带为单相SmCo7，具有Cu7Tb结构。当在720至900℃的温度范围内老化时，SmCo7相转变为Sm2Co17，SmCo5和CoFe（Zr）相，并带有次要的Sm2Co3相。对于x = 0.1合金，尽管合金中存在软磁性CoFe（Zr）相，但观察到较大的矫顽力Hc = 8.7 kOe。当时效温度从720℃升高到760℃时，CoFe（Zr）相的体积分数增加。在较高的时效温度下，CoFe（Zr）相被部分重新溶解。随着合金中Fe含量的增加，CoFe（Zr）相显着增加，导致矫顽力降低。

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