噴霧Fe-Cu合金粉の2,3の性質

抄録

An attempt to eliminate complicated phenomena of Fe-Cu compacts during sintering, Fe-Cu prealloyed powders were produced by liquid atomization, and their pressing and sintering properties were examined. The results were summerized as follows:
(1) The suitable annealing condition to obtain good compressibility of atomized powders is of 900°C for 1 hour in hydrogen.
(2) Weight loss in Rattle test and transverse rupture strength of compacts pressed at 5t/cm² are in the range of 0.5-2.0% and 0.7-1.2 Kg/mm²., respectively.
(3) With increasing Cu content, sintering properties of Fe-Cu alloyed powders are improved.
(4) Compacts pressed at 5t/cm² and sintered at 1200°C for 1 hour in hydrogen show the tensile strength of 27.6 Kg/mm² for 5%Cu and 44.0 Kg/mm² for 20%Cu., respectively.