Hot-forged tial-based alloy, method for producing same, and uses for same

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United States of America

PATENT NO 11920219
SERIAL NO

17311866

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Abstract

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The present invention provides a TiAl-based alloy, including: Al: 41 to 43 at %; Fe: 0 to 2.5 at %; Ni: 0 to 2.5 at %; Mo: 0 to 2.0 at %; W: 0 to 2.0 at %; Cr: 0 to 4.5 at %; Mn: 0 to 5.5 at %; V: 0 to 10 at %; Nb: 0 to 10 at %; C: 0.3 to 0.7 at %; and a remainder consisting of Ti and inevitable impurities, in which an alloy element parameter “P=(41.5−Al)/3+Fe+Ni+Mo+W+0.5 Cr+0.4 Mn+0.2 V+0.2 Nb—C” is in a composition range of 1.1 to 1.9, and the TiAl-based alloy has a microstructure consisting of a γ phase of 5 to 30 area %, a β phase of 0.5 to 5 area %, and a lamellar structure occupying a remaining part.

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Patent Owner(s)

Patent OwnerAddress
NATIONAL INSTITUTE FOR MATERIALS SCIENCE2-1 SENGEN 1-CHOME TSUKUBA-SHI IBARAKI 3050047 ?3050047

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tetsui, Toshimitsu Tsukuba, JP 13 48

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