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Creep crack growth in udimet 700

  • Mechanical Behaviour
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Abstract

Crack growth behavior in Udimet 700 was studied at 850°C (1560°F) and the crack growth rates are correlated with various fracture mechanics parameters,viz the stress intensity factor,J andC* integrals as well as with nominal stress. While there is considerable spread in the data in terms of all of these parameters, the crack growth rates seems to correlate better with the stress intensity factor than with the other three parameters. The crack growth behavior in the Udimet alloy is shown to differ significantly from that in previously studied Alloy 718 and these differences are attributed to the possible difference in the mechanisms of crack growth in the two alloys.

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Authors and Affiliations

  1. Thermostructural Materials Branch, Engineering Materials Division, Naval Research Laboratory, 20375, Washington, DC

    K. Sadananda (Research Metallurgist) & P. Shahinian (Research Metallurgist)

Authors
  1. K. Sadananda
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  2. P. Shahinian
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Sadananda, K., Shahinian, P. Creep crack growth in udimet 700. Metall Trans A 9, 79–84 (1978). https://doi.org/10.1007/BF02647174

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  • DOI: https://doi.org/10.1007/BF02647174

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