Menu
Search
Filters
Close
Menu

51317--9735-Corrosion Risk Assessment Through Dynamic Environmental Monitoring on Board a Naval Ship

Picture for Corrosion Risk Assessment Through Dynamic Environmental Monitoring on Board a Naval Ship
Available for download

A device measuring solution resistance across a gold interdigitated electrode, surface temperature and relative humidity, dynamically monitors environmental parameters on board a naval ship over the period of 9 months. Rigorous statistical analysis is used to analyze solution resistance data.

Product Number: 51317--9735-SG
ISBN: 9735 2017 CP
Author: Cosima Boswell-Koller
Publication Date: 2017
Industries: Military , Maritime , Corrosion Monitoring and Control
$0.00
$20.00
$20.00

Naval aviation and materiel are constantly exposed to environments conducive to corrosion and subsequent maintenance/repair of corrosion products remains a huge budgetary concern for the Naval Air Enterprise (NAE). As such ongoing research into the prediction and prevention of corrosion within the fleet is necessary. Environmental exposure sites provide the closest correlation between corrosion degradation and damage experienced in-service; unfortunately this type of testing is time-consuming not widely accessible and provides cumulative data only. Consequently an in-depth understanding of the naval operating environment is crucial both in the prediction and mitigation of corrosion damage. In this work we present results of dynamic environmental monitoring on-board a naval ship and its correlation to corrosion degradation. A device measuring solution resistance across a gold interdigitated electrode as well as surface temperature and relative humidity dynamically monitors environmental parameters on board a naval ship over the period of two years. Rigorous statistical analysis is used to analyze solution resistance data and correlate those measurements to the mass loss experienced by witness coupons exposed to the same environment. These data are then used to determine probabilities of wetness (and semi-wetness) as a function of absolute humidity; results are compared to those predicted by “ISO 9223:2012 Corrosion of metals and alloys - Corrosivity of atmospheres - Classification determination and estimation”. Finally corrosion action zones (CAZ) are constructed and compared to those measured during in-laboratory testing.

Key words: Dynamic corrosion monitoring, Solution resistance, Time of wetness, Mass loss

Naval aviation and materiel are constantly exposed to environments conducive to corrosion and subsequent maintenance/repair of corrosion products remains a huge budgetary concern for the Naval Air Enterprise (NAE). As such ongoing research into the prediction and prevention of corrosion within the fleet is necessary. Environmental exposure sites provide the closest correlation between corrosion degradation and damage experienced in-service; unfortunately this type of testing is time-consuming not widely accessible and provides cumulative data only. Consequently an in-depth understanding of the naval operating environment is crucial both in the prediction and mitigation of corrosion damage. In this work we present results of dynamic environmental monitoring on-board a naval ship and its correlation to corrosion degradation. A device measuring solution resistance across a gold interdigitated electrode as well as surface temperature and relative humidity dynamically monitors environmental parameters on board a naval ship over the period of two years. Rigorous statistical analysis is used to analyze solution resistance data and correlate those measurements to the mass loss experienced by witness coupons exposed to the same environment. These data are then used to determine probabilities of wetness (and semi-wetness) as a function of absolute humidity; results are compared to those predicted by “ISO 9223:2012 Corrosion of metals and alloys - Corrosivity of atmospheres - Classification determination and estimation”. Finally corrosion action zones (CAZ) are constructed and compared to those measured during in-laboratory testing.

Key words: Dynamic corrosion monitoring, Solution resistance, Time of wetness, Mass loss

Product tags
Also Purchased
Picture for Reflections on 70 Years of Marine Corrosion Research and Testing Inspired by Francis L. LaQue
Available for download

51317--9571-Reflections on 70 Years of Marine Corrosion Research and Testing Inspired by Francis L. LaQue

Product Number: 51317--9571-SG
ISBN: 9571 2017 CP
Author: Robert Kain
Publication Date: 2017
$20.00

This paper reflects on Francis L. LaQue 's pioneering approach that allowed testing in real-world marine environments and generation of comprehensive, practical data over nearly seven decades. These data are still widely referenced and used in materials selection for marine environments.

 
Picture for Ageing Subsea Pipelines External Corrosion Management
Available for download

51317--9642-Ageing Subsea Pipelines External Corrosion Management

Product Number: 51317--9642-SG
ISBN: 9642 2017 CP
Author: James Britton
Publication Date: 2017
$20.00

This paper reviews strategy for handling of life extension on old (17,000 km >35 years old, 55,000 > 25 years old) pipelines from preliminary assessment, through repair execution and post repair surveillance. Useful tips for avoiding common pitfalls are also presented.
Picture for Infrastructure Corrosion Issues and Solutions on Military Bases
Available for download

Infrastructure Corrosion Issues and Solutions on Military Bases

Product Number: 51317--9212-SG
ISBN: 9212 2017 CP
Author: Vinod Agarwala
Publication Date: 2017
$20.00

Many hangars, shelters and silos used for storage of military weapons systems are several decades old and have started to show signs of aging and corrosion assisted damage of support structures. Case study.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support