The effect of Co addition on the fracture strength of NdFeB sintered magnets

Autor:	Jian Yu, Jiansheng Wu, Jianhua Jiang, Zhenpeng Zeng, Masaaki Tokunaga
Rok vydání:	2001
Předmět:	Materials science Mechanical Engineering Metallurgy Metals and Alloys General Chemistry Intergranular corrosion Microstructure Neodymium magnet Fracture toughness Flexural strength Mechanics of Materials Magnet Materials Chemistry Fracture (geology) Grain boundary Composite material
Zdroj:	Intermetallics. 9:269-272
ISSN:	0966-9795
DOI:	10.1016/s0966-9795(00)00063-7
Popis:	The bending strength and fracture toughness of the ternary and Co-containing NdFeB sintered magnets have been studied. The microstructure and the fracture behavior were examined utilizing micro-analysis. It is shown that the bend fracture of the NdFeB magnets is mainly intergranular. The Co addition with proper content increases the bending strength of NdFeB sintered magnets by about 80% and this is mainly due to the strengthening of Nd-rich grain boundary phase.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6ab4c1772f0e55288787f4bc1cfd8e4a https://doi.org/10.1016/s0966-9795(00)00063-7 Zobrazit plný text záznamu Full Text from ScienceDirect