A New Method to Determine the Activation Energy for Hydrogen Desorption from Steels

Fu Gao Wei; Kaneaki Tsuzaki; Toru Hara

doi:10.4028/www.scientific.net/MSF.475-479.229

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HomeMaterials Science ForumMaterials Science Forum Vols. 475-479A New Method to Determine the Activation Energy...

A New Method to Determine the Activation Energy for Hydrogen Desorption from Steels

Abstract:

A new method has been developed to determine the activation energy for hydrogen desorption from steels by means of thermal desorption spectrometry (TDS). This method directly fits the Kissinger’s reaction kinetic formula dX/dt=A(1-X)exp(-Ed/RT) to experimentally measured thermal desorption spectrum and best fit yields the activation energy (Ed) and the value of constant A. It has been proven that this new method is applicable to precise measurement of the activation energy for hydrogen desorption from incoherent TiC particle, coherent TiC precipitate, grain boundary and dislocation in 0.05C-0.20Ti-2.0Ni and 0.42C-0.30Ti steels.

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Materials Science Forum (Volumes 475-479)

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229-232

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https://doi.org/10.4028/www.scientific.net/MSF.475-479.229

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January 2005

Authors:

Fu Gao Wei, Kaneaki Tsuzaki, Toru Hara

Keywords:

Activation Energy, Hydrogen Trapping, Thermal Desorption Spectrometry, Titanium Carbide

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References

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