Menu
Search
Filters
Close
Menu

Save 20% on select titles with code HIDDEN24 - Shop The Sale Now

Localized Corrosion Managing Clamp in a Crevice Between Clamp and CRAs Pipe/Tube Line

Picture for Localized Corrosion Managing Clamp in a Crevice Between Clamp and CRAs Pipe/Tube Line
Available for download

To support installed tube lines, plastic clamp systems (which cause a high risk of corrosion failure of the pipe and tube) have been widely used. Crevice corrosion resistance of such was investigated based on the standard test methods. Characteristics were analyzed and operational life time estimated.

Product Number: 51317--9281-SG
ISBN: 9281 2017 CP
Author: Byoung Young Yoon
Publication Date: 2017
Industries: Corrosion Monitoring and Control , Science of Corrosion
$0.00
$20.00
$20.00

Fluid flowing CRA pipe/tube line systems are usually subjected to repeated impulse and vibration. To support installed pipe/tube line plastic clamp systems have been widely used for various industries such as oil and gas industries ship building and power plants. However the plastic clamp system has high risk of corrosion failure on the pipe and tube underneath plastic clamp bodies which are supporting component for the clamp. Local failure (crevice corrosion) is initiated and propagated by changes in local chemistry within the crevice (between plastic clamp body and metal pipe and tube line). The localized corrosion in crevice is not predictable and once it is initiated the corrosion is extremely accelerated. As a result it can develop leakages that may lead to abrupt failure of CRA tubing/piping system.To prevent localized corrosion on the metal pipe/tube line underneath the clamp body the galvanic effect is used. In this paper the effect of inserting sacrificial anode between plastic clamp and pipe/tube line is investigated based on standard test method. And the corrosion characteristic of sacrificial anode is analyzed from lab test and field test results. Furthermore the operational life time of the anode inserting clamp is estimated.

Key words: Localized Corrosion, Crevice Corrosion, Clamp, Stainless Steel, Marnie Atmosphere

Fluid flowing CRA pipe/tube line systems are usually subjected to repeated impulse and vibration. To support installed pipe/tube line plastic clamp systems have been widely used for various industries such as oil and gas industries ship building and power plants. However the plastic clamp system has high risk of corrosion failure on the pipe and tube underneath plastic clamp bodies which are supporting component for the clamp. Local failure (crevice corrosion) is initiated and propagated by changes in local chemistry within the crevice (between plastic clamp body and metal pipe and tube line). The localized corrosion in crevice is not predictable and once it is initiated the corrosion is extremely accelerated. As a result it can develop leakages that may lead to abrupt failure of CRA tubing/piping system.To prevent localized corrosion on the metal pipe/tube line underneath the clamp body the galvanic effect is used. In this paper the effect of inserting sacrificial anode between plastic clamp and pipe/tube line is investigated based on standard test method. And the corrosion characteristic of sacrificial anode is analyzed from lab test and field test results. Furthermore the operational life time of the anode inserting clamp is estimated.

Key words: Localized Corrosion, Crevice Corrosion, Clamp, Stainless Steel, Marnie Atmosphere

Product tags
Also Purchased
Picture for Crevice Corrosion Performance of High Grade Stainless Steels and Ni-Based Alloys in Natural And Treated Seawater
Available for download

Crevice Corrosion Performance of High Grade Stainless Steels and Ni-Based Alloys in Natural And Treated Seawater

Product Number: 51316-7196-SG
ISBN: 7196 2016 CP
Author: Dominique Thierry
Publication Date: 2016
$20.00

To better understand and quantify the effect of crevice geometry, several crevice configurations simulating service conditions were evaluated including flanges assembled with gaskets, bolts mounted with nuts to plates, and the standard CREVCORR-type crevice formers.
Picture for Online Continuous Corrosion Monitoring for Detection Monitoring and Control of Localized Corrosion
Available for download

Online Continuous Corrosion Monitoring for Detection Monitoring and Control of Localized Corrosion

Product Number: 51317--9065-SG
ISBN: 9065 2017 CP
Author: Jake Davies
Publication Date: 2017
$20.00

The authors will demonstrate that deploying only a modest number of point measurement devices in an area of elevated localized corrosion risk will provide the best possible combination of probability of detection (POD) as well as ongoing wall thickness monitoring for localized corrosion attack.
Dominique Thierry / Charles Leballeur / Nicolas Larché
Available for download

51318-10959-A new crevice assembly adapted for tube geometries to test crevice corrosion in seawater

Product Number: 51318-10959-SG
Author: Dominique Thierry / Charles Leballeur / Nicolas Larché
Publication Date: 2018
$20.00

A new design for testing crevice corrosion on tube has been developed and qualified using finite elements simulations. The results show a relatively good distribution in pressure below the gasket.

 
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