Study on the Crack Propagation Behavior of ×80 Pipeline Steel Under AC Application in High pH Solution

Zhu, M.; Ou, G.; Jin, H.; Du, C.; Li, X.; Liu, Z.
June 2015
Journal of Materials Engineering & Performance;Jun2015, Vol. 24 Issue 6, p2422
Academic Journal
The crack propagation behavior of pipeline steels with or without AC application was studied in high pH solution using the crack propagation experiment (cyclic load). The results show that there is a significant difference in the crack propagation behavior of steels with or without AC interference. The crack growth rate (CGR) of steel under superimposed AC is considerably greater than that without AC. AC could cause an obvious effect on the crack propagation behavior, and enhance the CGR. The crack propagation behavior of steel under AC application in high pH solution is analogous to that in near-neutral pH solution.


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