Abstract：In this paper，micro-nano Fe-Co-Cu prealloyed powder was prepared by mechanical-chemical alloying
method. The effect of ball milling time，reduction time and temperature on the particle size and reduction rate of the
reduced powder were investigated. The results show that the precursor powder has a narrow particle size distribution
and uniform composition under the condition of ball milling time of 2 h and grinding aid content of 100 mL by mechanical-
chemical alloying method. When the precursor is reduced at 650 ℃×60 min under hydrogen atmosphere，a
micro-nano Fe-Co-Cu prealloyed powder with uniform particle size and low oxygen content can be obtained.
2020, Vol. 30 
