Effect of Residual Oxides in Co Powder on Properties and Structure of Sintered Powder Materials in Fe-Co System

摘要

Magnetic, electrical, and mechanical properties as well as the structure of Fe-Co powder materials are investigated. It is found that the structural rearrangement from the BCC solid solution of Co in a-Fe (a phase) to the HCP solid solution of Fe in a-Co (e phase) takes place with the increase in Co content. There are nonequilibrium mixtures of these phases in areas of intermediate composition containing residual oxides present in the initial Co powder.