MANGANESE ADDITION INFLUENCE ON THE DENSITY, SIZE, COMPACTIBILITY, AND POROSITY OF MIXED IRON-MANGANESE SINTERED COMPACTS

Cristian SUCIU, George ARGHIR, Ioan PETEAN

Abstract


The influence of manganese addition on the density and size, compactibility, and porosity of sintered compacts is studied. Cylindrical specimens of iron powder mixed with ferromanganese powder (5-15 mass Mn %) were made for analysis of size and density changes. Specimens were pressed at 600 MPa and sintered in H2 at the temperature of 1120 ºC and 1230 ºC for 30 minutes. Sintered specimens were analyzed by size and mass measurements. The addition of manganese leads to a linear increase of specimens size, influencing strongly the density and the microstructure, and increasing porosity.

Key words: sintering, manganese steel, density, size change

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References


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