Transcription of Characterization of Freckles in a High Strength Wrought ...
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Characterization of Freckles in a High Strength Wrought ...
Characterization OF Freckles IN A high Strength Wrought NICKEL SUPERALLOY. Paul D. Genereuxand Christopher A. Borg Pratt & Whitney United Technologies 400 Main Street East Hartford, Connecticut 06108. Abstract Freckles .' Segregationresulting in tree rings is not consideredto have a significant effect on mechanical properties; however, the Nickel basesuperalloys, such as Gatorizable Waspaloy@,U-720@, latter two are generally consideredto be detrimental. White spots, and Rene 88@ contain relatively high weight percents of as the name suggests,appear as light etching regions and are hardening elements ( Al & Ti), for a conventionally cast generally lower in alloying elements ( , Ti or Nb).
CHARACTERIZATION OF FRECKLES IN A HIGH STRENGTH WROUGHT NICKEL SUPERALLOY Paul D. Genereux and Christopher A. Borg Pratt & Whitney United Technologies
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