PHOSPHORUS CONTAINING STEEL POWDER AND A METHOD OF MANUFACTURING THE SAME

摘要

The risk of brittleness occurring in articles manufactured by powder metallurgy techniques from sintered steel containing phosphorus is significantlyreduced through the use of a steel powder which is substantially free of phosphorus but is intimately mixed with ferrophosphorus powder having a phosphorus content in excess of 2.8 weight - % in such an amount that the phosphorus content of the mixture is 0.2 - 1.5 weight - % the ferrophosphorus powder having a carbon content exceeding 0.3 weight - %.