THE EFFECTS OF VACUUM-CONSUMABLEELECTRODE REMELTING ON THE PROPERTIES OF 12NI-5CR-3MO STEEL.
UNITED STATES STEEL CORP MONROEVILLE PA
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A study was made to determine the effect of vacuum-consumable-electrode remelting on the chemical composition, mechanical properties, and microstructure of 12Ni-5Cr-3Mo steel, a comparison was made with steel from the same heat that was 1 air-melted, conventionally cast, and rolled 2 air-melted, conventionally cast, upset-forged, and rolled and 3 air-melted, conventionally cast, vacuumconsumable-electrode remelted, upset-forged, and rolled. The results indicated that vacuum-consumable-electrode remelting did not improve the properties of the 12Ni-5Cr3Mo steel, but that special processing procedures such as upset forging markedly improved the notch toughness of the steel. Author