A METHOD OF PRODUCING A DIFFUSION ALLOYED IRON OR IRON-BASED POWDER, A DIFFUSION ALLOYED POWDER, A COMPOSITION INCLUDING THE DIFFUSION ALLOYED POWDER, AND A COMPACTED AND SINTERED PART PRODUCED FROM THE COMPOSITION

摘要

A method of producing a diffusion alloyed powder having an iron or iron-based core powder having particles of an alloying powder containing Cu and Ni bonded to the surface of the core particles, including providing a unitary alloying powder capable of forming particles of a Cu and Ni containing alloy, mixing the unitary alloying powder with the core powder, and heating the mixed powders in a non-oxidizing or reducing atmosphere to a temperature of 500-1000° C. during a period of 10-120 minutes to convert the alloying powder into a Cu and Ni containing alloy, so as to diffusion bond particles of the Cu and Ni alloy to the surface of the iron or iron-based core powder.