稀土永磁材料的HD工艺研究及应用  

Research and Application of Hydrogenation Decrepitation Process on the Rare Earth Permanent Magnetic Materials

作　　者：李建奎[1] 方以坤[1] 潘伟[1] 

机构地区：[1]钢铁研究总院功能材料研究所,北京100081

出　　处：《金属功能材料》2008年第6期38-43,共6页Metallic Functional Materials

摘　　要：综述了HD工艺在稀土永磁材料中的研究及应用现状。阐述了HD工艺的原理、特点、优点以及稀土永磁材料氢化过程中的吸氢机理、断裂方式、吸氢量的变化规律。并对HD工艺的应用前景进行了展望。The status of the research and application of hydrogenation decrepitation process in the rare earth permanent magnetic materials was firstly summarized. The general principles, characteristic, and advantage of HD process were described. Moreover, for the diverse rare earth permanent magnetic materials, the existing hydrogen absorption mechanism, the corresponding fracture modes, and the amount of hydrogen absorption were discussed in detail. Finally, the prospect of the application of HD process was presented.

关 键 词：稀土永磁材料 HD工艺 沿晶断裂 穿晶断裂 

分 类 号：TM273[一般工业技术—材料科学与工程]