Abstract
The creep-fatigue crack growth response of welded fusion boundaries is examined. Displacement-controlled creep-fatigue tests have been performed at 56 5°C on two types of weld. The tests incorporated hold periods of up to 190 hours. A comparison is made between the response of the welded fusion boundaries in both an Incoweld A “cold” weld and a conventional 21/4Cr1Mo weld laid in 1/2 CrMoV steel parent. It is shown that faster crack growth rates are obtained for the Incoweld A weld. Furthermore, dwell time dependent cyclic rates were obtained for the Incoweld A material. Mean and upper bound equations are given which describe the creep-fatigue crack growth response of both materials in terms of the relevant fracture mechanics parameters.
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© 1991 Elsevier Science Publishers Ltd
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Priest, R.H., Gladwin, D.N., Miller, D.A. (1991). Creep-Fatigue Crack Growth in Welded Fusion Boundaries. In: Cocks, A.C.F., Ponter, A.R.S. (eds) Mechanics of Creep Brittle Materials 2. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3688-4_9
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DOI: https://doi.org/10.1007/978-94-011-3688-4_9
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-85166-701-7
Online ISBN: 978-94-011-3688-4
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