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Fatigue Crack Growth Behavior of Nickel-base Superalloy Haynes 282 at 550-750° C Public Deposited

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  • The fatigue crack growth rates for nickel-based superalloy Haynes 282 were measured at temperatures of 550, 650, and 750 °C using compact tension specimens with a load ratio of 0.1 and cyclic loading frequencies of 25 Hz and 0.25 Hz. Increasing the temperature from 550 to 750 °C caused the fatigue crack growth rates to increase from ~20 to 60% depending upon the applied stress intensity level. The effect of reducing the applied loading frequency increased the fatigue crack growth rates from ~20 to 70%, also depending upon the applied stress intensity range. The crack path was observed to be transgranular for the temperatures and frequencies used during fatigue crack growth rate testing. At 750 °C, there were some indications of limited intergranular cracking excursions at both loading frequencies; however, the extent of intergranular crack growth was limited and the cause is not understood at this time.
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  • Rozman, K. A., Kruzic, J. J., & Hawk, J. A. (2015). Fatigue Crack Growth Behavior of Nickel-base Superalloy Haynes 282 at 550-750° C. Journal of Materials Engineering and Performance, 24(8), 2841-2846. doi:10.1007/s11665-015-1588-9
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  • 24
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  • 8
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  • This report was prepared as an account of work sponsored by an agency of the United States Government.
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  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2015-08-18T15:23:56Z (GMT) No. of bitstreams: 1 KruzicJMechIndustrialManufEnginFatigueCrackGrowth.pdf: 1271661 bytes, checksum: 59ce111baac809ef1d106b500b9704c1 (MD5)
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