Nickel-based superalloy and articles
作者： Wei-Jun Zhang , Joshua Leigh Miller , Douglas Gerard Konitzer
DOI:
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摘要: A nickel-based superalloy composition includes from about 5 to 7 wt% aluminum, 4 8 tantalum, 3 chromium, tungsten, 1 molybdenum, 1.5 rhenium, 14 cobalt, 0 hafnium, 0.01 0.03 carbon, 0.002 0.006 boron, and balance nickel incidental impurities. The may exhibit a sustained peak low cycle fatigue life at 1800°F/45 ksi of least 4000 cycles. be used in single- crystal or directionally solidified articles, such as blade, nozzle, shroud, splash plate, combustor gas turbine engine.
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