Özet:

In this study, the impact of deformation ageing of 0.4% C steel produced by the method of dust metallurgy (TM) was studied. For this purpose, the pure iron powder, natural graphite powder with a weight of 0.4%, and stearate with a weight of 0.3%, is added as a fertilizer. The obtained powder mixtures are formed at a pressure of 700 MPa at room temperature and in a single effective form, and micro-tracking test samples are produced. Then, at a temperature of 1180 oC, the pure argon gas was left to the synthesis process for 30 minutes under the atmosphere. After the synthesis process, a 4 percent pre-deformation was applied to medium-carbon powder metal steels produced. The ageing process was then carried out for 30 minutes at temperatures of 200, 300 and 400oC respectively. After the deformation made ageing, the powder metal steel; microbuilding, hardness, broken surface and drawing properties have been studied. As a result of static deformation, the highest flow resistance and hardness values were observed at 200 oC in static deformation aging applied samples.

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