Abstract
The work was aimed at determining the effect of phosphorus on vacuum carburising of iron compacts with density over 7.2 gcm−3. An attempt was made to determine the effectiveness of phosphorus on carbon diffusion rate into the material of compacts with no additional effect of interconnected porosity. Vacuum carburising of compacts, made with a blend of powders ASC100.29 and PASC60, was carried out at 1050 °C in a laboratory vacuum furnace.
The effect of phosphorus content within 0.1% to 0.6% on the vacuum carburising depth was analysed. It was found that the phosphorus addition up to 0.4% increased the carburising depth by ca. 20% in comparison with the compacts of pure iron.
Abstrakcyjny
Celem pracy było określenie wpływu fosforu na przebieg nawęglania próżniowego wyprasek żelaznych o gęstości powyżej 7,2 gcm−3. Podjęto próbę oceny efektywności oddziaływania fosforu na szybkość dyfuzji węgla w głąb materiału wyprasek bez dodatkowego wpływu porowatości otwartej. Nawęglanie próżniowe wyprasek, wykonanych z mieszanki proszków żelaza ASC100.29 i PASC60, przeprowadzono w temperaturze 1050 °C, w laboratoryjnym piecu próżniowym. Analizowano wpływ dodatku fosforu, o zawartości z zakresu 0,1–0,6%, na głębokość nawęglania próżniowego badanych wyprasek.
Wykazano, że fosfor dodany do proszku żelaza w ilości 0,4% zwiększa głębokość nawęglania wyprasek o ok. 20% w porównaniu do wyprasek z czystego żelaza.
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Widanka, K. Effect of phosphorus on vacuum carburising depth of iron compacts. Archiv.Civ.Mech.Eng 10, 85–91 (2010). https://doi.org/10.1016/S1644-9665(12)60132-0
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DOI: https://doi.org/10.1016/S1644-9665(12)60132-0