A Modified Electrochemical Nanoindentation Setup for Probing Hydrogen-Material Interaction Demonstrated on a Nickel-Based Alloy
| Autor: | Ernst Plesiutschnig, Verena Maier-Kiener, Helmut Clemens, Steffen Brinckmann, Anna Sophie Ebner, Reinhard Pippan |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Hydrogen Alloy technology industry and agriculture General Engineering chemistry.chemical_element Modulus 02 engineering and technology Nanoindentation engineering.material 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Nickel chemistry ddc:670 0103 physical sciences engineering General Materials Science Composite material 0210 nano-technology Electron backscatter diffraction Hydrogen embrittlement |
| Zdroj: | JOM 72(5), 2020-2029 (2020). doi:10.1007/s11837-020-04104-9 JOM-Journal of the Minerals Metals & Materials Society |
| ISSN: | 1543-1851 1047-4838 |
| Popis: | An electrochemical charging setup was implemented in a nanoindentation system to evaluate the sensitivity of technically relevant materials to hydrogen embrittlement. Corresponding changes in the nanomechanical properties such as the hardness, Young’s modulus and pop-in load can be measured and interpreted. A nickel-based alloy was examined in solution-annealed and aged condition. A hydrogen-induced hardness increase of 15% was measured for the solution-annealed sample. Aging the alloy leads to a reduced influence of hydrogen, lowering the hardness increase to 5%. For the solution-annealed sample, hydrogen charging-induced surface steps were observed and characterized with laser confocal microscopy and electron backscatter diffraction to reveal plastic deformation. |
| Databáze: | OpenAIRE |
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