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tckyw

Ìú³æ (СÓÐÃûÆø)

TiAl

Yet its modest melting point
(1500C) precludes it from use in hightemperature
blades and restricts it to the
low-pressure turbine and static parts of
the engine. After more than 20 years of effort
on TiAl,8¨C11 it is not yet used in commercial
jet engines,

The problems
that remain include low roomtemperature
ductility (1¨C2%), low fracture
toughness, high stress-sensitivity of fatigue
life, and high manufacturing cost for
finished parts.
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9Â¥2006-04-20 20:14:14
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mangozxg

Ìú³æ (СÓÐÃûÆø)

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4Â¥2006-04-14 15:40:23
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wan9000

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