Table I. At a test frequency of 6000 rpm, conventional alloy has an endurance limit of 120 ksi. Powder-metallurgy alloy has an endurance limit of 130 ksi.(click image to enlarge) For the last several ...
An array of powder-metal parts. Powder metallurgy was practiced long before ancient artisans learned to melt and cast iron. Egyptians made iron tools using PM techniques back in 3,000 B.C. The ancient ...