Influence of Seawater Flow Velocity on the Morphological Characteristics of Calcareous Deposits Formed by Cathodic Protection
Authors
Chengjie Li, Min Du, Xin Cui
Corresponding Author
Chengjie Li
Available Online April 2015.
- DOI
- 10.2991/cmes-15.2015.28How to use a DOI?
- Keywords
- seawater, calcareous deposits, flow velocity, galvanostatic, cathodic protection
- Abstract
The influence of seawater flow velocity on calcareous deposits formed under galvanostatic polarization mode was studied. The protection potentials of electrodes shifted positively with increasing flow velocities which were monitored versus time at various flow velocities. The whole curves of potential decay appeared two inflection points, corresponding to the different processes of crystal sedimentation. Observation by scanning electron microscope and X-ray diffraction analyses demonstrated that the ratio of magnesium in the deposits increased with flow velocities, and the main kind of crystal was brucite when the velocity was higher than 10 cm/s.
- Copyright
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Chengjie Li AU - Min Du AU - Xin Cui PY - 2015/04 DA - 2015/04 TI - Influence of Seawater Flow Velocity on the Morphological Characteristics of Calcareous Deposits Formed by Cathodic Protection BT - Proceedings of the 2nd International Conference on Civil, Materials and Environmental Sciences PB - Atlantis Press SP - 95 EP - 98 SN - 2352-5401 UR - https://doi.org/10.2991/cmes-15.2015.28 DO - 10.2991/cmes-15.2015.28 ID - Li2015/04 ER -