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International Hydrogen Conference (IHC 2012): Hydrogen-Materials Interactions
B. P. Somerday
B. P. Somerday
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P. Sofronis
P. Sofronis
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ASME Press
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Thermal desorption spectroscopy (TDS) has been widely used to study the hydrogen-metal interaction since it can provide information on hydrogen uptake and trapping as well as the activation energies of these traps. However, a thorough evaluation of the effect of the different experimental parameters of the TDS measurement has not been done yet. Some results of this evaluation are presented here. Secondly, the designed methodology was used to test both lab cast and industrial high strength steels. Industrial materials have complex microstructures which hinder a one-to-one correlation between a TDS peak and a microstructural feature. Therefore, lab cast materials were designed and evaluated by TDS to simulate the main microstructural components of the high strength alloys.

Experimental Methodology
TDS Study of Iron Based Alloys
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