Effects of the disproportionation stage of the HDDR process on magnetic properties and microstructure of Pr{sub}13Fe{sub}80B{sub}7 alloys

摘要

It is well known that hydrogenation disproportionation desorption recombination (HDDR) process can be not only used to prepare Nd-Fe-B material with high coercivities, but also employed to fabricate Nd-Fe-B material with high anisotropy.[1] It has been shown that the heat treatment conditions of the disproportionation stage affect the magnetic properties and microstructure of Nd-Fe-B alloys. [2] In this paper, effects of the disproportionation stage of the HDDR process on magnetic properties and microstructure of Pr{sub}13Fe{sub}80B{sub}7 alloys are investigated.