Mesoscale Model for Predicting Hydrogen Damage in Face Centred Cubic Crystals
| Autor: | Peter Christie, Mehmet E. Kartal, Amir Siddiq, Umair Bin Asim, Eugene Ogosi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Hydrogen Hydrogen damage chemistry.chemical_element Surfaces and Interfaces Condensed Matter Physics Crystal Stress (mechanics) chemistry Mechanics of Materials Void (composites) General Materials Science Physics::Atomic Physics Composite material Deformation (engineering) Porosity Hydrogen embrittlement |
| Zdroj: | Physical Mesomechanics. 24:588-597 |
| ISSN: | 1990-5424 1029-9599 |
| Popis: | A study has been performed using a crystal plasticity based finite element method to understand the effect of various stress states and crystal orientations with respect to loading direction for FCC single crystals in both hydrogenated and nonhydrogenated environment. Simulations have been performed for a variety of stress triaxilaities, Lode parameters, crystal orientations and hydrogen concentrations. It has been observed that crystal orientation has a varied effect on the influence of hydrogen on plastic deformation and void growth. Hydrogen in trap distribution at various stages of the deformation process was also found to be influenced by crystal orientation. From analyses performed, an analytical relationship between normalised void fraction and equivalent strain has been derived. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink