Menu
Search
Filters
Close
Menu

51312-01166-Field Methods for Estimating Pipeline Stress Corrosion Crack Growth Rate at High pH

Picture for Field Methods for Estimating Pipeline Stress Corrosion Crack Growth Rate at High pH
Available for download
Product Number: 51312-01166-SG
ISBN: 01166 2012 CP
Author: Fengmei Song
Publication Date: 2012
$0.00
$20.00
$20.00
Crack growth rate (CGR) is a critical parameter in pipeline integrity management for estimating inspection or reassessment intervals. The current industrial practice of estimating CGRs uses a constant rate or a rate obtained through linear extrapolation. Without including the underlying cracking mechanisms to account for the non-linear physical growth of a crack such an estimate can be fraught with significant uncertainty. Mechanistic CGR models for pipeline high pH stress corrosion cracking (SCC) are often sophisticated contain numerous variables of which many may not be known or cannot be measured in the field. Thus direct field use of these models is challenging. This paper reports a method developed for making field use of the mechanistic models by reducing and grouping the variables. Such a simplified model still retains the mechanistic nature of the original models and if calibrated with field data will allow for predicting the future crack growth. A four-step procedure was proposed for field use of the models as an alternative to existing methods. A proper CGR should be chosen by evaluating all the CGRs obtained from different methods and by using best expert judgment.
Crack growth rate (CGR) is a critical parameter in pipeline integrity management for estimating inspection or reassessment intervals. The current industrial practice of estimating CGRs uses a constant rate or a rate obtained through linear extrapolation. Without including the underlying cracking mechanisms to account for the non-linear physical growth of a crack such an estimate can be fraught with significant uncertainty. Mechanistic CGR models for pipeline high pH stress corrosion cracking (SCC) are often sophisticated contain numerous variables of which many may not be known or cannot be measured in the field. Thus direct field use of these models is challenging. This paper reports a method developed for making field use of the mechanistic models by reducing and grouping the variables. Such a simplified model still retains the mechanistic nature of the original models and if calibrated with field data will allow for predicting the future crack growth. A four-step procedure was proposed for field use of the models as an alternative to existing methods. A proper CGR should be chosen by evaluating all the CGRs obtained from different methods and by using best expert judgment.
Product tags
Also Purchased
Picture for Field Methods for Estimating Pipeline Stress Corrosion Crack Growth Rate at Near-Neutral pH
Available for download

51312-01167-Field Methods for Estimating Pipeline Stress Corrosion Crack Growth Rate at Near-Neutral pH

Product Number: 51312-01167-SG
ISBN: 01167 2012 CP
Author: Fengmei Song
Publication Date: 2012
$20.00
Picture for An Investigation of Carburization and Oxidation of Heat Resistant Cast Steels
Available for download

51312-01171-An Investigation of Carburization and Oxidation of Heat Resistant Cast Steels

Product Number: 51312-01171-SG
ISBN: 01171 2012 CP
Author: Ahmad Soleymani
Publication Date: 2012
$20.00
Picture for Time and Dimension Scaling for Crevice Corrosion on Steel Pipes
Available for download

51312-01168-Time and Dimension Scaling for Crevice Corrosion on Steel Pipes

Product Number: 51312-01168-SG
ISBN: 01168 2012 CP
Author: Fengmei Song
Publication Date: 2012
$20.00
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