| Nb含量对NdFeB合金HDDR工艺及显微组织的影响 |
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| 引用本文： | 龚朝辉,艾小玲,宋晓平,高建荣.Nb含量对NdFeB合金HDDR工艺及显微组织的影响[J].金属功能材料,1998(6). |
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| 作者姓名： | 龚朝辉 艾小玲 宋晓平 高建荣 |
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| 作者单位： | 五二研究所宁波分所，湖北省国防科技工业职工大学，西安交通大学 |
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| 摘 要： | 探讨了Ｎｄ含量对纯三元ＮｄＦｅＢ合金氢化／歧化／脱氢／重组（ＨＤＤＲ）工艺以及其显微组织变化的影响。结果表明：Ｎｄ含量的增加促进了ＨＤＤＲ工艺过程加快、最佳工艺处理温度降低，并使其显微组织中晶粒尺寸的不均匀性增大。
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| 关 键 词： | NdFeBHDRR 显微组织 |
Effect of Nd Content on HDDR Process and Microstructure |
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| Abstract: | The influnece of Nd content on magnetic properties and microstructures of bonded NdFeB magnets by HDDR process was studied. The results show that the higher the Nd content is ,the more rapid reaction of HDDR process and the lower optimum temperature of the treatment are. Moreover, a higher Nd content results in a larger grain size of Nd 2Fe 14 B,whereas the coercivity of magnets is greatly enhanced. So a hihger Dn content is helpful to increase the coercivity of magnets. |
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| Keywords: | NdFeB HDDR mdicrostructure |
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