Hydrogen-enhanced densified twinning (HEDT) in a twinning-induced plasticity (TWIP) steel
| Autor: | Huihui Zhi, Cheng Zhang, Yanjing Su, Stoichko Antonov, Lin Chen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Austenite Materials science Hydrogen Mechanical Engineering Twip Metals and Alloys Nucleation chemistry.chemical_element 02 engineering and technology Plasticity 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Stress (mechanics) chemistry Mechanics of Materials 0103 physical sciences General Materials Science Composite material 0210 nano-technology Crystal twinning Hydrogen embrittlement |
| Zdroj: | Scripta Materialia |
| Popis: | The effect of hydrogen on the twinning evolution in a twinning-induced plasticity (TWIP) austenitic steel was investigated at different strain levels. The presence of hydrogen decreased the twin thickness and increased the twin density in individual twin bundles, in comparison with the hydrogen-free condition. This mechanism, reported for the first time, was termed hydrogen-enhanced densified twinning (HEDT). Based on these experimental observations, the effect of hydrogen on twinning was analyzed from the three stages of nucleation, growth and stability. HEDT may elevate the local stress, and thus significantly affect the hydrogen embrittlement (HE) of TWIP steels. |
| Databáze: | OpenAIRE |
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