Menu
Search
Filters
Close
Menu

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

51316-7333-Comparison of Corrosion Behavior in HIC Test Solutions for FFP evaluation

Picture for Comparison of Corrosion Behavior in HIC Test Solutions for FFP evaluation
Available for download

Hydrogen Induced Cracking (HIC) can be a major issue for line pipe exposed to sour environments. In this study, influence of the test solutions on HIC evaluation was investigated from the view point of corrosion. Electrochemical measurements were employed to compare corrosion behavior of line pipe steels between the 0.93N acetate buffer solution and the conventional 0.05N acetate solution.

 

Product Number: 51316-7333-SG
ISBN: 7333 2016 CP
Author: Daisuke Mizuno
Publication Date: 2016
Industry: Science of Corrosion
$0.00
$20.00
$20.00

Hydrogen Induced Cracking (HIC) can be a major issue for line pipe exposed to sour environments. Most commonly, solution A in NACE TM0284 (5.0 wt% NaCl and 0.5 wt% CH3COOH) is used under 1 bar H2S to evaluate HIC susceptibility of steel plates and pipe products. High Strength Line Pipe (HLP) Committee of The Iron and Steel Institute of Japan (ISIJ)(1) has investigated Fitness for Purpose (FFP) HIC evaluations and proposed 5%NaCl + 0.93N (CH3COOH+CH3COONa) solution. It was reported that the 0.93N acetate solution provided excellent pH stability during HIC test in comparison with conventional EFC(2)16 solution (0.05N CH3COONa) in our previous papers.

In this study, influence of the test solutions on HIC evaluation was investigated from the view point of corrosion. Electrochemical measurements were employed to compare corrosion behavior of line pipe steels between the 0.93N acetate buffer solution and the conventional 0.05N acetate solution. In addition, corroded surface was investigated since hydrogen entry into steel strongly depends on corrosion morphology. Applicability of the proposed 0.93N acetate solution will be also discussed based on results obtained from this study.

Key words: downloadable, HIC, sour environment, H2S, line pipes, fit-for-purpose, pH, buffer solution, HLP

 

Hydrogen Induced Cracking (HIC) can be a major issue for line pipe exposed to sour environments. Most commonly, solution A in NACE TM0284 (5.0 wt% NaCl and 0.5 wt% CH3COOH) is used under 1 bar H2S to evaluate HIC susceptibility of steel plates and pipe products. High Strength Line Pipe (HLP) Committee of The Iron and Steel Institute of Japan (ISIJ)(1) has investigated Fitness for Purpose (FFP) HIC evaluations and proposed 5%NaCl + 0.93N (CH3COOH+CH3COONa) solution. It was reported that the 0.93N acetate solution provided excellent pH stability during HIC test in comparison with conventional EFC(2)16 solution (0.05N CH3COONa) in our previous papers.

In this study, influence of the test solutions on HIC evaluation was investigated from the view point of corrosion. Electrochemical measurements were employed to compare corrosion behavior of line pipe steels between the 0.93N acetate buffer solution and the conventional 0.05N acetate solution. In addition, corroded surface was investigated since hydrogen entry into steel strongly depends on corrosion morphology. Applicability of the proposed 0.93N acetate solution will be also discussed based on results obtained from this study.

Key words: downloadable, HIC, sour environment, H2S, line pipes, fit-for-purpose, pH, buffer solution, HLP

 

Product tags
Also Purchased
Picture for Corrosion Resistance of Cast Nickel Base Superalloys in Environments Relevant to Gas-Turbines Operation
Available for download

51316-7331-Corrosion Resistance of Cast Nickel Base Superalloys in Environments Relevant to Gas-Turbines Operating on Sulfur Rich Fuels

Product Number: 51316-7331-SG
ISBN: 7331 2016 CP
Author: Dmitry Naumenko
Publication Date: 2016
$20.00

 Oxidation behavior of a commercial, cast Ni-base superalloy was studied in air-SO2 mixture, simulating combustion gases from high sulfur containing fuels. Experiments at 1050°C for up to 500 hours duration. The studied alloy was characterized with a number of analytical methods including SEM / EDX and GDOES after different oxidation times.
Picture for Comparing Environmental Resistance of UNS R55400 Tubulars to Other Oilfield Ttianium Alloys
Available for download

51316-7328-Comparing Environmental Resistance of UNS R55400 Tubulars to Other Oilfield Titanium Alloys

Product Number: 51316-7328-SG
ISBN: 7328 2016 CP
Author: Ronald Schutz
Publication Date: 2016
$20.00

This paper presents an expanded laboratory test database on critical corrosion modes for UNS R55400 pipe exposed to relevant oilfield production environments which include sour well fluid brines, a heavy chloride/bromide brine well completion fluid, injected methanol, organic acid- and HCl-based well acidizing solutions, and seawater.
Picture for Effect of Cycle Frequency on the Oxidation Resistance of Ni- and Fe-based Alloys at 982oC
Available for download

51316-7344-Effect of Cycle Frequency on the Oxidation Resistance of Ni- and Fe-based Alloys at 982oC

Product Number: 51316-7344-SG
ISBN: 7344 2016 CP
Author: Joseph Meyer
Publication Date: 2016
$20.00

This paper focuses on short-term oxidation testing (1,000 hours) of Ni- and Fe based heat-resistant alloys in flowing air with varying cycle frequencies (1, 10, and 168 hours) at 982 °C. The alloys tested were ranked based on weight change behavior and metal recession measurements.
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