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3 1998

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Properties of Mo-alloyed sintered manganese steels.

Romański A., Ciaś A.

Inżynieria Materiałowa

1998

R. XIX, nr 4

1175-1178

Sintered alloy steels are needed for mostly PM structural parts. Powder metallurgy techniques provide a means of fabricating high quality steel parts with tailored mechanical properties. It is now possible to produce sintered steel parts with properties equal to and even superior to those of parts made by more traditional routes. Challenges arise both with the material selection and component fabrication. This presentation outlines the processing for high performance structural application.

Effect processing variables on mechanical properties of sintered manganese steels Fe-3%Mn-0.8%C.

Sułowski M., Ciaś A.

Inżynieria Materiałowa

1998

R. XIX, nr 4

1179-1182

The powder metallurgy route may allow sintered manganese steels to be made based on pure iron powder and ferromanganese powder with control over alloy microstructure. The factors that contribute to the mechanical properties of sintered Fe-3%Mn-0,8%C manganese steel, such as the sintering atmosphere, dew point, sintering temperature, cooling rate are summarized. The paper shows the influence of these parameters on the tensile strength, yield strength, transverse rupture strength, impact strength and hardness. It showed that tensile high strength level higher then those of many present sintered steels can be obtained already in the as-sintered condition.

Effect of silicon additions and processing parameters on mechanical properties of iron-base PM materials.

Mazurkiewicz O., Leżański J., Konstanty J.

Inżynieria Materiałowa

1998

R. XIX, nr 4

1199-1202

Results of investigation of silicon additions and processing parameters on mechanical properties and microstructure of the iron-base sintered materials are presented. Green density as well as as-sintered density, hardness, tensile strength, transverse rupture strength and impact toughness were measured. As-sintered microstructures were also examined. The results indicate marked effect of silicon additions, cold compacting pressure and sintering temperature on evaluated properties.