|
|||||
|
|
Stress corrosion cracking initiation under the disbonded coating of pipeline steel in near-neutral pH environment |
|
| Authors: | A Eslami R Kania J Been W Chen |
| Affiliation: | a Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4 b TransCanada Pipeline Limited, Calgary, Alberta, Canada T2P 5H1 c Alberta Research Council, Edmonton, Alberta, Canada T6N 1E4 |
| Abstract: | A novel test setup has been used in this study to simulate stress corrosion cracking initiation under a disbonded coating on an X-65 pipeline steel. In this setup, the synergistic effects of cyclic loading, cathodic protection and soil solution environment under disbonded coatings have been considered. When the X-65 pipeline steel was exposed to the test environment, there existed a wide range of corrosion products on the steel surface in the gradient of cathodic protection. Increasing the test time and the maximum stress increased the possibility of stress corrosion cracking initiation in regions with a high susceptibility to pitting corrosion. |
| Keywords: | A Steel B SEM C Cathodic protection C Pitting corrosion C Stress corrosion |
| 本文献已被 ScienceDirect 等数据库收录！ | |