| 合金元素对烧结Nd—Fe—B永磁材料断裂强度影响的研究 |
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| 引用本文： | 曾振鹏. 合金元素对烧结Nd—Fe—B永磁材料断裂强度影响的研究[J]. 理化检验(物理分册), 1997, 33(9): 19-21 |
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| 作者姓名： | 曾振鹏 |
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| 作者单位： | 上海交通大学国家教委高温材料与高温测试开放实验室!200030 |
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| 摘 要： | 研究了含Ｃｏ和不含Ｃｏ的烧结Ｎｄ－Ｆｅ－Ｂ永磁材料的抗弯强度和断裂韧性，并采用微观分析方法对它们的断裂行为进行了研究。结果表明，烧结Ｎｄ－Ｆｅ－Ｂ永磁材料的静变断裂主要为沿晶断裂。
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| 关 键 词： | 烧结 断裂韧性 穿晶断裂 永磁材料 钕－铁－硼 |
A STUDY OF ALLOY ELEMENTS AFFECTING THE FRACTURE STRENGTH OF SINTERED Nd-Fe-B MAGNETS |
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| Zeng Zhenpeng. A STUDY OF ALLOY ELEMENTS AFFECTING THE FRACTURE STRENGTH OF SINTERED Nd-Fe-B MAGNETS[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 1997, 33(9): 19-21 |
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| Authors: | Zeng Zhenpeng |
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| Affiliation: | Shanghai Jiaotong University |
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| Abstract: | The bending strength and fracture toughness of both the simple and Co-Containing Nd-Fe-B sin-tered permanent magnets have been studied in this paper. The fracture behaviour is examined by micro-analysis method. It is shown that static fracture of the Nd-Fe-B sintered permanent magnetic materials is mainly intergran-ular. Proper addition of Co increases the bending strength of Nd-Fe-B sintered permanent magnets by about 80% and this is mainly due to the decrease of the intergranular fracture proportion. |
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| Keywords: | Sintering Fracture toughness Intergranular fracture Transgranular fracture |
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