Influence of hydrogen on plasticity around the crack tip in high strength steels
| Autor: | Fabrício Pinheiro dos Santos, Geraldo Guttemberg, Oscar R. Mattos, Marcella Araujo Lage, Kioshy Santos de Assis |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Hydrogen Mechanical Engineering 05 social sciences Metallurgy Crack tip opening displacement chemistry.chemical_element Fracture mechanics 02 engineering and technology Plasticity 021001 nanoscience & nanotechnology Fracture toughness chemistry Mechanics of Materials 0502 economics and business General Materials Science 050207 economics 0210 nano-technology Environmental stress fracture Hydrogen embrittlement |
| Zdroj: | Engineering Fracture Mechanics. 176:116-125 |
| ISSN: | 0013-7944 |
| Popis: | Fracture mechanics concepts applied to tests in aggressive environments are a challenge for integrity analysis. Specifically about hydrogen, the concentration of this element in defects or in trapping sites can cause unexpected failure. The present paper presents results showing the influence of hydrogen in the reduction of fracture toughness and a discussion about how to deal with it in high strength alloys. The results show that the hydrogen reduces the plasticity and consequently the applications of CTOD concepts are questionable for the studied materials. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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