Metal treatment – Process of modifying or maintaining internal physical... – With casting or solidifying from melt
Patent
1995-06-07
1997-01-21
Simmons, David A.
Metal treatment
Process of modifying or maintaining internal physical...
With casting or solidifying from melt
420429, 419 10, 419 12, C22F 118
Patent
active
055956165
ABSTRACT:
Methods of enhancing oxidation resistance and methods of making molybdenum alloys are provided. In these methods, alloys are prepared by the addition of silicon and boron in amounts defined by the area of a ternary system phase diagram bounded by the points Mo-1.0%Si-0.5%B, Mo-1.0%Si-4.0%B, Mo-4.5%Si-0.5%B, and Mo-4.5%Si-4.0 B. The methods utilize rapid solidification followed by consolidation at below the melting point. The resultant alloys have mechanical properties similar to other high temperature molybdenum alloys while possessing a greatly enhanced resistance to oxidation at high temperature.
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Phipps Margery S.
Simmons David A.
United Technologies Corporation
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