METHOD FOR MANUFACTURING COMPOSITE MATERIALS, AND A COMPOSITE MATERIAL MANUFACTURED WITH THE METHOD

摘要

A method for manufacturing powder metallurgical composite material and a material manufactured with said method, whereby in said method at least one steel powder including alloying materials forming nitrides and carbides is used, and in said method the powder is compacted by means of pressure and temperature into a solid product. The amount of the alloying materials forming nitrides and carbides in the steel powder to be used in the method is more than 10 percent by weight, and the carbon or nitrogen content of the steel powder is increased in the manufacturing steps following the atomizing.