Corrosion under insulation (CUI) is an important issue in marine environments. Pitting corrosion is a significant contributor to this issue. The ability to understand and model pitting behavior is integral to designing and maintaining assets in marine environments to decreased costs and increase safety and productivity. This paper reviews and analyses six categories of pitting knowledge to assess the current depth and breadth of understanding and to identify knowledge gaps in each category. The categories investigated are: identification of pitting, experimental methods, mechanism of pitting, modeling of pitting corrosion rates, remaining life assessment modeling, and risk-based inspections. This analysis finds that the depth of knowledge on pitting corrosion rate modeling and pitting mechanism is limited and requires further detailed study. The outcome of such study will strengthen pitting corrosion rate modeling, the accuracy of fitness-for-service assessments and risk-based inspection strategies.

Item Type:	Refereed Article
Keywords:	pitting corrosion, corrosion under insulation, safety assessment, fitness-for-service assessment, risk-based inspection
Research Division:	Chemical Sciences
Research Group:	Physical chemistry
Research Field:	Physical chemistry not elsewhere classified
Objective Division:	Construction
Objective Group:	Construction materials performance and processes
Objective Field:	Metals
UTAS Author:	Khan, F (Professor Faisal Khan)
ID Code:	91589
Year Published:	2013
Web of Science® Times Cited:	68
Deposited By:	NC Maritime Engineering and Hydrodynamics
Deposited On:	2014-05-22
Last Modified:	2014-05-23
Downloads:	0