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US 2019/0126345 A1Published application
Directional solidification apparatus and related methods
AssigneeUnited Technologies Corporation
InventorMario P. Bochiechio
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Abstract
A directional solidification apparatus includes a mold heating chamber, a solidification chamber, and a gas source. The solidification chamber is adjacent the mold heating chamber for solidifying molten metal formed from an air melt allow system as a cast body as the metal is withdrawn from the mold heating chamber. The gas sources is in fluid communication with the mold heating chamber for providing a pressurized atmosphere for directionally solidifying metal as cast body having single crystal or multi-crystal columnar micro structure.
Claims16
A method of casting a metal, comprising:
- introducing molten metal comprising a carbon steel, low alloy steel, or a non-nickel based alloy system into a mold heating chamber in a controlled atmosphere;
- withdrawing the molten metal into a solidification chamber in the controlled atmosphere;
- and
- removing heat from the molten metal in a controlled atmosphere and developing a directionally solidified cast body with single crystal or a multi-crystal columnar microstructure.
1 more element
Dependencies are inferred from the claim text.