Microstructural selection in conventionally and rapidly solidified Sm–Co–T alloys

Phase constitution, evolution and correlation with magnetic performance in nominal SmCo9.8 alloy

“…Thus the high-Co Sm-Co alloy containing single phase can hardly be prepared by the conventional methods starting with the stoichiometric composition. At present, the melt spinning and mechanical alloying are the representative methods to prepare Sm-Co alloys with metastable phases, which have been used successfully to obtain the nanocrystalline alloy with metastable SmCo 7 phase [11][12][13]. However, it is difficult to extend these methods to prepare single-phase Sm-Co binary alloys with even higher Co content, because the agglomeration of Co often occurs during the processing.…”