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Manufacturing Industry

Supersolvus P/M superalloy resists high-temperature creep. (Metals).

Advanced Materials & Processes,  December, 2002  

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The supersolvus nickel-base powder metallurgy Rene 95 superalloy provides higher resistance to creep and stress rupture at high temperatures than subsolvus Rene 95, according to Crucible Compaction Metals, Oakdale, Pa. The chemistry is not modified, still containing 12-l4Cr, 7-9Co, 3.3-3.7Mo, 3.3-3.7W, 3.3-3.7Nb, 2.3-2.7Ti, 3.3-3.7K.

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Instead, the properties are developed by processing above the gamma prime solvus to provide a larger grain size than subsolvus-processed Rene 95. Although this results in a small reduction in strength at room temperature and elevated temperature, ...

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