SIMS study on the surface chemistry of stainless steel AISI 304 cylindrical tensile test samples showing hydrogen embrittlement
| Autor: | Stefan Wagner, Richard Pargeter, Astrid Pundt, Sebastian Weber, C. Izawa, Thorsten Michler, M. Martin, A. Bourgeon |
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| Rok vydání: | 2011 |
| Předmět: |
Materials science
Hydrogen Iron oxide chemistry.chemical_element 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences chemistry.chemical_compound Materials Chemistry Austenitic stainless steel Embrittlement Tensile testing Mechanical Engineering fungi Metallurgy technology industry and agriculture Metals and Alloys 021001 nanoscience & nanotechnology 0104 chemical sciences Secondary ion mass spectrometry chemistry Mechanics of Materials engineering 0210 nano-technology Layer (electronics) Hydrogen embrittlement |
| Zdroj: | Journal of Alloys and Compounds. 509:S885-S890 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2010.12.143 |
| Popis: | The local surface chemistry of a low-Ni austenitic stainless steel AISI type 304 used for tensile testing in hydrogen atmosphere is characterized by secondary ion mass spectrometry (SIMS). A chemical map on cylindrical austenitic stainless steel samples can be obtained even after a tensile test. In an effort to obtain the proper chemical element distribution on the samples, the influence of contamination and sample orientation is discussed. An iron oxide on top of a chromium oxide layer is present and Si segregation at grain boundaries is detected. Oxides are judged to reduce the initial hydrogen attack but to be of minor importance for crack propagation during the embrittlement process. |
| Databáze: | OpenAIRE |
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