Abstract
The effect has been determined of changes in bainite content and prior austenite grain size on the creep fracture behavior of a low alloy ferritic steel. Increasing the bainite content is found to increase both crack growth and crack opening displacement rates whereas a simultaneous decrease in both the prior austenite grain size and bainite content is found to lower these rates. The results, coupled with metallo graphic evidence, are interpreted in terms of creep crack growth being controlled by the accumulation of displacement at a crack tip.
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Formerly with the Dept. of Metallurgy, Univ. of Manchester
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Jones, C.L., Pilkington, R. The influence of microstructure on creep crack growth in 0.5 Pct Cr, 0.5 Pct Mo, 0.25 Pct V steel. Metall Trans A 9, 865–871 (1978). https://doi.org/10.1007/BF02649797
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DOI: https://doi.org/10.1007/BF02649797