Precipitation hardening nickel base single crystal cast alloy
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United States of America Patent
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Jun 16, 1992
Grant Date -
N/A
app pub date -
May 9, 1990
filing date -
May 16, 1989
priority date (Note) -
Expired
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Abstract
A precipitation strengthening type nickel base single crystal alloy, which consists essentially of, on a weight percent basis, 10-30% chromium, 0.1-5% niobium, 0.1-8% titanium, 0.1-8% aluminum, optionally one or more components selected from the group consisting of 0.1-3% tantalum, 0.05-0.5% copper, 0.05-3% hafnium, 0.05-3% rhenium, 0.05-3% molybdenum, 0.05-3% tungsten, 0.05-0.5% boron, 0.05-0.5% zirconium, and the remainder being nickel and incidental impurities, and exhibits a narrow solidification temperature range.
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