Menu
Search
Filters
Close
Menu

10290 Hydrogen Embrittlement Testing of High Strength Low Carbon Martensitic Steels

Picture for 10290 Hydrogen Embrittlement Testing of High Strength Low Carbon Martensitic Steels
Available for download
Product Number: 51300-10290-SG
ISBN: 10290 2010 CP
Author: Robert J. Conder, Peter Felton, Ray Burke and Philip Dent
Publication Date: 2010
$0.00
$20.00
$20.00
High strength carbon steels are being used as the external reinforcement for a novel composite pipeline. This system combines a thin wall corrosion resistant alloy with the reinforcement to produce a high pressure pipeline which is manufactured on site giving a lower cost alternative to conventional thick-wall pipelines. Despite the widely known susceptibility of high strength ferritic-bainitic carbon steels to hydrogen embrittlement, there is little published data on the hydrogen embrittlement behaviour of martensitic carbon steels. Therefore, a series of tests was performed to establish the risk of cracking in a buried condition where cathodic protection is applied. Tests were performed to establish the plateau hydrogen content and the hydrogen flux under various charging conditions, and then a series of slow strain rate and constant load tests performed under polarised conditions to establish any reduction in ductility over samples tested in air. Microscopy analysis of the fracture surfaces was performed to identify any change in the fracture morphology. A stressed full ring test of a sample of the composite pipeline was also tested under simulated cathodic protection conditions. The results of this testing are discussed and the implications for the use of this novel composite pipeline system evaluated.

KEYWORDS: Hydrogen embrittlement, martensitic, steel, testing, pipe, composite
High strength carbon steels are being used as the external reinforcement for a novel composite pipeline. This system combines a thin wall corrosion resistant alloy with the reinforcement to produce a high pressure pipeline which is manufactured on site giving a lower cost alternative to conventional thick-wall pipelines. Despite the widely known susceptibility of high strength ferritic-bainitic carbon steels to hydrogen embrittlement, there is little published data on the hydrogen embrittlement behaviour of martensitic carbon steels. Therefore, a series of tests was performed to establish the risk of cracking in a buried condition where cathodic protection is applied. Tests were performed to establish the plateau hydrogen content and the hydrogen flux under various charging conditions, and then a series of slow strain rate and constant load tests performed under polarised conditions to establish any reduction in ductility over samples tested in air. Microscopy analysis of the fracture surfaces was performed to identify any change in the fracture morphology. A stressed full ring test of a sample of the composite pipeline was also tested under simulated cathodic protection conditions. The results of this testing are discussed and the implications for the use of this novel composite pipeline system evaluated.

KEYWORDS: Hydrogen embrittlement, martensitic, steel, testing, pipe, composite
Product tags
Also Purchased
Picture for Investigation of Hydrogen Embrittlement of High Strength Pipeline Steels Under Cathodic Protection
Available for download

Investigation of Hydrogen Embrittlement of High Strength Pipeline Steels Under Cathodic Protection

Product Number: 51317--9255-SG
ISBN: 9255 2017 CP
Author: Lei Zhang
Publication Date: 2017
$20.00

Pipeline steels higher than API X80 grade ad subject to hydrogen embrittlement risk induced by the hydrogen evolution effect under cathodic protection. This paper focuses on the hydrogen embrittlement behaviors of API X70, X80 and X90 high strength pipeline steel under cathodic protection in soil simulation conditions.
Picture for 04563 Controlling Hydrogen Embrittlement
Available for download

04563Controlling Hydrogen Embrittlement in Ultra-High Strength Steels

Product Number: 51300-04563-SG
ISBN: 04563 2004 CP
Author: John R. Scully, Hakan Dogan, Daoming Li, and Richard P. Gangloff, University of Virginia
$20.00
Picture for Evaluation of Susceptibility to Hydrogen Embrittlement of High Strength Corrosion Resistant
Available for download

51316-7847-Evaluation of Susceptibility to Hydrogen Embrittlement of High Strength Corrosion Resistant

Product Number: 51316-7847-SG
ISBN: 7847 2016 CP
Author: Masayuki Sagara
Publication Date: 2016
$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