Long-range diffusion of H in the presence of traps in a microalloyed steel
Autor: | Peter Lang, Jürgen Klarner, Gerald Klösch, Sabine Zamberger, Ernst Kozeschnik |
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Rok vydání: | 2016 |
Předmět: |
Work (thermodynamics)
Materials science General Computer Science General Physics and Astronomy 02 engineering and technology Trapping Interstitial element engineering.material 01 natural sciences 0103 physical sciences General Materials Science Physics::Atomic Physics Diffusion (business) Hydrogen permeation Condensed Matter::Quantum Gases 010302 applied physics Range (particle radiation) Precipitation (chemistry) Metallurgy General Chemistry 021001 nanoscience & nanotechnology Computational Mathematics Mechanics of Materials Chemical physics engineering Microalloyed steel 0210 nano-technology |
Zdroj: | Computational Materials Science. 113:266-274 |
ISSN: | 0927-0256 |
DOI: | 10.1016/j.commatsci.2015.11.014 |
Popis: | In the present work, we apply a new model for trapping of interstitial elements at various types of atomic traps to investigate the H-trapping efficiency of different kinds of precipitates in a microalloyed steel grade. The model is briefly introduced and reviewed. The trapping strength representative for the different stages of the precipitation process is evaluated, as well as the influence of size and shape of the particles on the trapping capacity. The significant impact of the applied trapping energies between precipitate interface and H-atoms is discussed. On basis of the present work, the considerable scatter of experimental H-diffusion data at low temperatures is straightforwardly explained and quantitatively reproduced in the simulations. |
Databáze: | OpenAIRE |
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