A Critical Review of Existing Hydrogen Diffusion Models Accounting for Different Physical Variables

Jesús Toribio; Viktor Kharin

doi:10.4028/www.scientific.net/SSP.225.13

Paper Titles

Preface, Committee and Prof. Balitskii 60^th Anniversary of Birthday

Electrochemical Hydrogen in Metals - Can we Effectively Control this Harm?
p.1

Modelling Macroscopic Properties of Organic Species on the Basis of Quantum Chemical Analysis (on an Example of Inhibiting Efficiency of Ureides and Acetylides against Corrosion)
p.7

A Critical Review of Existing Hydrogen Diffusion Models Accounting for Different Physical Variables
p.13

Cavitation Erosion and Corrosion of Pearlitic Gray Cast Iron in Non-Standardized Cavitation Conditions
p.19

Analysis of the Effect of the Wearing Type on Surface Structural Changes of Ni₃Al-Based Intermetallic Alloy
p.25

Hydrogen Diffusion in Metals Assisted by Stress: 2D Numerical Modelling and Analysis of Directionality
p.33

Hydrogen Degradation of the Pressure Gas Tanks Materials after Long-Term Service
p.39

Investigating Fatigue Strength of Vacuum Carburized 17CrNi6-6 Steel Using a Resonance High Frequency Method
p.45

HomeSolid State PhenomenaSolid State Phenomena Vol. 225A Critical Review of Existing Hydrogen Diffusion...

A Critical Review of Existing Hydrogen Diffusion Models Accounting for Different Physical Variables

Abstract:

The present paper offers a continuum modelling of trap-affected hydrogen diffusion in metals and alloys, accounting for different physical variables of both macroscopic nature (i.e., related to continuum mechanics, e.g., stress and strain) and microscopic characteristics (material microstructure, traps, etc.). To this end, the model of hydrogen diffusion assisted by the gradients of both hydrostatic stress and cumulative plastic strain, stress-and-strain assisted hydrogen diffusion, proposed and frequently used by the authors of the present paper (Toribio & Kharin) is analysed in addition to other well-known models such as those proposed by (i) McNabb & Foster, (ii) Oriani, (iii) Leblond & Dubois, (iv) Sofronis & McMeeking, (v) Krom and Bakker, showing their physical and mathematical differences and similarities to account for different physical variables.