Hydrogen Transport and Cracking in Metals: Proceedings of a Conference Held at the National Physical Laboratory, Teddington, UK, 13-14 April 1994

by Turnbull,Alan

• ISBN13: 9780901716675
• ISBN10: 0901716677
• Format: Hardcover
• Copyright: 1995-03-01
• Publisher: CRC Press

Summary

The increasing economic pressure to reduce over-design and to extend service life while maintaining acceptable safety margins demands increased reliability in prediction of the performance and lifetime of fabricated structures, components such as valves, and other equipment exposed to hostile environments. Environment-assisted cracking of metals due to absorbed hydrogen has been a major cause of failure of components, structures, pipelines and pressure vessels with sometimes catastrophic results.
This volume is based on a conference held at the National Physical Laboratory, Teddington, UK on 13-14 April 1994. It summarises the extensive research undertaken in Europe to quantify hydrogen uptake and transport in metals in laboratory and field situations and to improve understanding and prediction of cracking in service.

Table of Contents

Foreword
Hydrogen Cracking and its Mitigation in the Petroleum Industry	p. 1
The Significance of Hydrogen on the Welding and Weldability of Duplex and Super Duplex Stainless Steels - A Review	p. 9
Experimental Investigation of the Role of Hydrogen in Stress Corrosion Cracking of Duplex Stainless Steels	p. 17
Influence of Cathodic and Corrosive Hydrogen on the Cracking Behaviour of Austenitic Iron and Nickel Base Alloys	p. 27
Influence of Surface Defects on Hydrogen Effects During Stress Corrosion and Corrosion Fatigue	p. 38
The Influence of Cathodic Overpotential on Microstructural and Physically-Small Crack Growth	p. 50
Predicting Hydrogen Induced Crack Growth Rates in Pipelines and Pressure Vessels	p. 62
Stress Corrosion Cracking of a Cathodically Charged Structural Steel	p. 77
Time-Dependent Factors in the Corrosion Fatigue Testing of Cathodically Protected Low Alloy Steels	p. 88
Mechanistic Aspects of Hydrogen Cracking Process in High Strength Steel	p. 95
Some Considerations on the EAC Mechanisms during Crack Propagation under Monotonic Loading	p. 103
Acoustic Emission during Hydrogen Charging and Stress Corrosion Cracking	p. 113
Chloride Assisted Cracking in Blade Steel Material - the OCP Analysis	p. 123
Standardisation of Hydrogen Permeation Measurement by the Electrochemical Technique	p. 129
Surface Phenomena on Pure Iron during Electrochemical Permeation Tests	p. 142
Palladium as a Catalyst of Hydrogen Oxidation	p. 155
Measurement of Effluent Hydrogen in Pressure Vessel and Linepipe Steels	p. 161
Reliability of Clamp-on Sensors for Hydrogen Permeation Measurements	p. 172
Hydrogen Concentration Measurements Using a Gel-Filled Electrochemical Probe	p. 187
Methods of Hydrogen Uptake Measurements by Electrochemical Permeation Test on Low Alloy Steels	p. 204
The Effect of the Nitrides and Carbides of V, Nb and Ti on the Diffusion and Dissolution of Hydrogen in Iron	p. 216
Hydrogen Diffusion and Trapping in Cr-Mo Steels for Hydrotreating Reactors	p. 227
A Study of Hydrogen Permeation on API X65 TMCP Steel Under Stress Conditions	p. 240
The Influence of Pressure on Hydrogen Permeation and Hydrogen Embrittlement of Higher Strength Steels	p. 253
Hydrogen Transport in SAF2205 and SAF2507 Duplex Stainless Steels	p. 268
Hydrogen Permeation Measurements in Aluminium Alloy Foils	p. 280
Laboratory Testing of Hydrogen Permeation in Biologically Active Seawater	p. 289
Measurements of Hydrogen Diffusion through Cathodically Protected Steel in Sour Environments	p. 299
Generalised Modelling of Hydrogen Diffusion and Trapping	p. 312
Internal Friction in Hydrogen-Charged CrNi and CrNiMn Austenitic Stainless Steels	p. 321
Subject Index	p. 337
Author Index	p. 343
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