Microstructural refinement of cast metal

Details Microstructural refinement of cast metal Microstructural refinement of cast metal

C - Chemistry, Metallurgy

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C22F 1/00 (2006.01) B22D 21/00 (2006.01) C21D 1/00 (2006.01) C22B 9/14 (2006.01) C22B 34/12 (2006.01) C22B 34/14 (2006.01) C22F 1/18 (2006.01)

Patent

CA 1220698

Abstract of the Disclosure A method of refining the microstructure of metals which _ undergo a phase transformation at high temperatures by diffusing a solute material into the metal at a temperature below the nor- mal transformation temperature. The solute induces the phase transformation and removal of the solute at a temperature near the transformation temperature reverses the transformation. These phase transformations refine the microstructure of the metal so treated. The method is particularly useful to Group IVB metals i.e. Zr, Hf and Ti.

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