Evaluation of Hydrogen Degradation by In Situ Ultrasonic Testing

Maciej Szwed; Krystyna Lublińska; Marcin Wielgat; Andrzej Zagórski; Wojciech Spychalski; Krzysztof J. Kurzydlowski

doi:10.4028/www.scientific.net/SSP.183.207

Paper Titles

Positive Effect of Hydrogen Treatment in Titanium Ti-6Al-4V Alloy
p.179

Corrosion of Ni-Al and Ni-Al-Al₂O₃ Flame Sprayed Coatings of „CastoDyn 8000" System in 0.01 M H₂SO₄ and 3.5% NaCl Solutions
p.185

The Effect of Welding Conditions on Diffusible Hydrogen Content in Deposited Metal
p.193

Cavitation Erosion Resistance of Austenitic Stainless Steel after Glow-Discharge Nitriding Process
p.201

Evaluation of Hydrogen Degradation by In Situ Ultrasonic Testing
p.207

Effects of Laser Remelting at Cryogenic Conditions on Microstructure and Wear Resistance of the Ti6Al4V Alloy Applied in Medicine
p.215

Materials Design for the Titanium Scaffold Based Implant
p.225

Indoor Atmospheric Degradation of Historical Metal Objects Studied by Spectroscopic Techniques
p.233

Modelling of the Heat Flux Density Distribution for Laser Beam Welding
p.241

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Evaluation of Hydrogen Degradation by In Situ Ultrasonic Testing

Abstract:

In this paper, the results are presented of the ultrasonic investigations of hydrogen degradation of 09G2S carbon steel. Samples of the steel were hydrogen charged with simultaneous registration of the ultrasonic signal. The results of ultrasonic investigations were verified by Light Microscopy (LM), Scanning Electron Microscopy (SEM) and X-ray microanalysis technique (EDS). It was shown that the in-situ ultrasonic flaw detection can be used to monitor the early stages of hydrogen degradation, i.e. the formation of microcracks caused by hydrogen trapping at nonmetallic inclusions and hydrogen blistering.