Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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The Effect of Chemical Composition of Sintering Atmosphere on the Structure and Mechanical Properties of PM Manganese Steels with Chromium and Molybdenum Additions

  • Sulowski, Maciej (AGH-University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science) ;
  • Cias, Andrzej (AGH-University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science) ;
  • Stoytchev, Marin (Bulgarian Academy of Sciences, Institute of Metal Science) ;
  • Andreev, Tchavdar (Bulgarian Academy of Sciences, Institute of Metal Science)
  • Published : 2006.09.24
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Abstract

The effect of chemical composition of the sintering atmosphere on density, microstructure and mechanical properties of Fe-3%Mn-(Cr)-(Mo)-0.3%C steels is described. Pre-alloyed Astaloy CrM and CrL, ferromanganese and graphite were used as the starting powders. Following pressing in a rigid die, compacts were sintered at 1120 and $1250^{\circ}C$ in atmospheres having different $H_2/N_2$ ratio and furnace cooled to room temperature. It has been found that the atmosphere composition has negligible effect on the as-sintered properties of the investigated materials.

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