The Beneficial Effect Of Higher Molybdenum Content In Reducing Brittleness In Some Higher Strength Manganese Steels
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•The beneficial effect of molybdenum in reducing brittleness in
manganese steels were tested by adding 2-4% molybdenum in
proportions to manganese alloys betweer, 10-14?~. The specimens of
the alloys were solution treated under vacuum furnace at 9')0°C,
'10)0°C and 11)0°C for 1 hour and then air cooled. Furthermore,
these were tested for mechanical properties a.t room temperature.
The broken specimens were examined by using the scanning electron
microscope to ascertain that the mode of fractographs of the alloys
solution treated at higher temperature, was intergranular at lower
molybdenum content. The beneficial effect of a larger amount of
molybdenum (1about l1~~), in re.ducing the susceptibility to
intergranular embrittlement, was noticed in· the alloy. iuggestions
were made in this paper on how a larger amount of molybdenum (about
4?.\) was found to prevent embrittlement in high slrength manganese
s tee 1.
Keywords
T Technology (General), TJ Mechanical engineering and machinery