| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1573644 | Materials Science and Engineering: A | 2016 | 7 Pages |
Abstract
The susceptibility to stress corrosion cracking (SCC) of X70 pipeline steel under cathodic protection in near-neutral pH and acidic solutions was investigated by slow-strain-rate tensile test, circumferential-notch tensile (CNT) test, and three-point-bending (TPB) test. Results confirmed the existence of a hydrogen-induced plasticity (HIP) effect within a particular range of cathodic potentials. HIP effect lowered the SCC risk of X70 steel by releasing stress concentration at crack-initiation spots and then decreasing the stress intensity. Crack-growth behavior examined by CNT and TPB tests proved the existence of an HIP effect.
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Physical Sciences and Engineering
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Authors
Z.Y. Liu, X.Z. Wang, C.W. Du, J.K. Li, X.G. Li,