The results of 27 creep crack growth tests performed on four different specimen types (CT, 3PB, ECP, and CCP) are reported. A lead alloy, previously used as a creep ‘model material’ was used. Of the parameters commonly used to correlate creep crack growth data, the C∗ parameter was found to be the best for the lead alloy data. It is concluded that the lead alloy may be useful for ‘modelling’ the creep crack growth rates in components made of other materials with similar creep ductilities.
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