Crack Growth Anomalies in Base Steel P91 and in HAZ


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The growth of cracks in base steel P91 of 9Cr-1Mo class and in intercritical layer of HAZ is measured under creep coditions. For long term tests, a material degradation was detected consisting in an increase of crack growth rate and in a decrease of crack initiation time. An attempt is made to connect these effects with drop in ductility during thermomechanicalexposition.



Edited by:

Jaroslav Pokluda




J. Balík et al., "Crack Growth Anomalies in Base Steel P91 and in HAZ", Materials Science Forum, Vol. 482, pp. 383-386, 2005

Online since:

April 2005




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