Abstract
It is well known that sintered manganese steel has a good mechanical property, but the sintering is believed not easy due to the fact that oxide of manganese is not readily reduced.
First, the physical and mechanical properties of sintered iron-manganese alloys were studied. The results obtained were as follows :
(1) A maximum tensile strength of about 44kg/mm2 can be obtained for the sintered ironmanganese alloys (no carbon content).
(2) Tensile strength, transverse rupture strength and hardness increase with an increase in an amount of manganese, with their maximum value for 10 wt. % manganese.
(3) In order to obtain good mechanical properties, it is necessary to sinter the compact from ferro-manganese alloy powder or at a sintering temperature of 1300°C.
(4) With the higher densities of compacts made from high manganese additions, it is expected to obtain an alloy having reasonably high tensile strength and ductility.
