| Hydrogen Absorption of Nd-Fe-B Alloys |
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| 引用本文： | 谭春林,白书欣,张虹,张家春,蔡珣. Hydrogen Absorption of Nd-Fe-B Alloys[J]. 中国稀土学报(英文版), 2004, 22(5): 668-672 |
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| 作者姓名： | 谭春林 白书欣 张虹 张家春 蔡珣 |
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| 作者单位： | [2]DepartmentofMaterialsEngineeringandAppliedChemistry,NationalUniversityofDejertseTechnology,Changsha410073,China [3]SchoolofMaterialsScienceandEngineering,ShanghaiJiaotongUniversity,Shanghai200030,China／／DepartmentofMaterialsEngineeringandAppliedChemistry,NationalUniversityofDefenseTechnology,Changsha410073,China [4]SchoolofMaterialsScienceandEngineering,ShanghaiJiaotongUniversity,Shanghai200030,China |
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| 摘 要： | The technical parameters of HD process were studied, including the effects of temperature and neodymium contents on the incubation period of hydrogen absorption, hydrogen concentration and the rate of hydrogen absorbed. The results show that the incubation period is shortened and the rate of hydrogen absorbed is accelerated with rising temperature and surface area. These are attributed to the rising rate of hydrogen diffusion at higher temperature. The change of the incubation period and the rate of hydrogen absorbed have the similar trend resulted from the increasing content of the Nd-rich phase owing to the rising temperature. Moreover, the percent of the Nd-rich phase in the ingot can be calculated according to the total hydrogen weight gain.
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| 关 键 词： | 金属材料 氢燃烧 表面区域 Nd-Fe-B合金 稀土元素 钕 |
Hydrogen Absorption of Nd-Fe-B Alloys |
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| Tan Chunlin. Hydrogen Absorption of Nd-Fe-B Alloys[J]. Journal of Rare Earths, 2004, 22(5): 668-672 |
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| Authors: | Tan Chunlin |
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| Affiliation: | Tan Chunlin ~ |
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| Abstract: | The technical parameters of HD process were studied, including the effects of temperature and neodymium contents on the incubation period of hydrogen absorption, hydrogen concentration and the rate of hydrogen absorbed. The results show that the incubation period is shortened and the rate of hydrogen absorbed is accelerated with rising temperature and surface area. These are attributed to the rising rate of hydrogen diffusion at higher temperature. The change of the incubation period and the rate of hydrogen absorbed have the similar trend resulted from the increasing content of the Nd-rich phase owing to the rising temperature. Moreover, the percent of the Nd-rich phase in the ingot can be calculated according to the total hydrogen weight gain. |
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| Keywords: | metal materials hydrogen decrepitation neodymium content surface area NdFeB rare earths |
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