Abstract
The hydrogen effect on dislocation nucleation in Ni single crystals with (111) surface orientation has been examined with the aid of a specifically designed nanoindentation setup for in situ electrochemical experiments. The effect of the electrochemical potential on the indent load – displacement curve, especially the unstable elastic-plastic transition (pop-in), was studied in detail. The experiments allowed the exclusion of the surface from hydrogen effects. The observations showed a pop-in load drop from an average value of 250 to 100 μN due to in situ hydrogen charging, which is reproducibly observed within sequential hydrogen charging and discharging. Clear evidence is provided that hydrogen atoms facilitate homogeneous dislocation nucleation.
The authors would like to thank the Surface Company in Hueckelhoven, Germany for their support and suggestions during the construction of the electrochemical nanoindentation set-up.
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© 2006 Carl Hanser Verlag, München
Articles in the same Issue
- Contents
- Editorial
- Nanoindentation creep and stress relaxation tests of polycarbonate: Analysis of viscoelastic properties by different rheological models
- Investigation of SiO2 thin films on Si substrates for use as standards for laser-acoustic measuring devices
- Determination of the critical tensile stress of sapphire by spherical indentation with additional lateral forces
- The deformation behaviour of electrodeposited nanocrystalline Ni in an atomic force microscope with a newly developed in situ bending machine
- In situ electrochemical nanoindentation of a nickel (111) single crystal: hydrogen effect on pop-in behaviour
- Indentation behaviour of (011) thin films of III–V semiconductors: polarity effect differences between GaAs and InP
- Multiwall carbon nanotubes-based composites – mechanical characterization using the nanoindentation technique
- Nanoindentation studies of stamp materials for nanoimprint lithography
- Experimental and thermodynamic evaluation of the Co–Cr–C system
- Thermodynamics of high-temperature cuprous sulfide
- Sintering of Si3N4 with Li-exchanged zeolite additive
- Effect of LiYO2 addition on sintering behavior and indentation properties of silicon nitride ceramics
- Mechanism of quasi-viscous flow of zinc single crystals
- The absolute thermoelectric power of chromium, molybdenum, and tungsten
- Modelling of metal – mould interface resistance in the Al-11.5 wt.% Si alloy casting process
- Award/Preisverleihung
- Personal
- Conferences
- Contents
- Editorial
- Editorial
- Basic
- Nanoindentation creep and stress relaxation tests of polycarbonate: Analysis of viscoelastic properties by different rheological models
- Investigation of SiO2 thin films on Si substrates for use as standards for laser-acoustic measuring devices
- Determination of the critical tensile stress of sapphire by spherical indentation with additional lateral forces
- The deformation behaviour of electrodeposited nanocrystalline Ni in an atomic force microscope with a newly developed in situ bending machine
- In situ electrochemical nanoindentation of a nickel (111) single crystal: hydrogen effect on pop-in behaviour
- Indentation behaviour of (011) thin films of III–V semiconductors: polarity effect differences between GaAs and InP
- Multiwall carbon nanotubes-based composites – mechanical characterization using the nanoindentation technique
- Nanoindentation studies of stamp materials for nanoimprint lithography
- Experimental and thermodynamic evaluation of the Co–Cr–C system
- Applied
- Thermodynamics of high-temperature cuprous sulfide
- Sintering of Si3N4 with Li-exchanged zeolite additive
- Effect of LiYO2 addition on sintering behavior and indentation properties of silicon nitride ceramics
- Mechanism of quasi-viscous flow of zinc single crystals
- The absolute thermoelectric power of chromium, molybdenum, and tungsten
- Modelling of metal – mould interface resistance in the Al-11.5 wt.% Si alloy casting process
- Kösterpreis
- Award/Preisverleihung
- Notifications
- Personal
- Conferences
Articles in the same Issue
- Contents
- Editorial
- Nanoindentation creep and stress relaxation tests of polycarbonate: Analysis of viscoelastic properties by different rheological models
- Investigation of SiO2 thin films on Si substrates for use as standards for laser-acoustic measuring devices
- Determination of the critical tensile stress of sapphire by spherical indentation with additional lateral forces
- The deformation behaviour of electrodeposited nanocrystalline Ni in an atomic force microscope with a newly developed in situ bending machine
- In situ electrochemical nanoindentation of a nickel (111) single crystal: hydrogen effect on pop-in behaviour
- Indentation behaviour of (011) thin films of III–V semiconductors: polarity effect differences between GaAs and InP
- Multiwall carbon nanotubes-based composites – mechanical characterization using the nanoindentation technique
- Nanoindentation studies of stamp materials for nanoimprint lithography
- Experimental and thermodynamic evaluation of the Co–Cr–C system
- Thermodynamics of high-temperature cuprous sulfide
- Sintering of Si3N4 with Li-exchanged zeolite additive
- Effect of LiYO2 addition on sintering behavior and indentation properties of silicon nitride ceramics
- Mechanism of quasi-viscous flow of zinc single crystals
- The absolute thermoelectric power of chromium, molybdenum, and tungsten
- Modelling of metal – mould interface resistance in the Al-11.5 wt.% Si alloy casting process
- Award/Preisverleihung
- Personal
- Conferences
- Contents
- Editorial
- Editorial
- Basic
- Nanoindentation creep and stress relaxation tests of polycarbonate: Analysis of viscoelastic properties by different rheological models
- Investigation of SiO2 thin films on Si substrates for use as standards for laser-acoustic measuring devices
- Determination of the critical tensile stress of sapphire by spherical indentation with additional lateral forces
- The deformation behaviour of electrodeposited nanocrystalline Ni in an atomic force microscope with a newly developed in situ bending machine
- In situ electrochemical nanoindentation of a nickel (111) single crystal: hydrogen effect on pop-in behaviour
- Indentation behaviour of (011) thin films of III–V semiconductors: polarity effect differences between GaAs and InP
- Multiwall carbon nanotubes-based composites – mechanical characterization using the nanoindentation technique
- Nanoindentation studies of stamp materials for nanoimprint lithography
- Experimental and thermodynamic evaluation of the Co–Cr–C system
- Applied
- Thermodynamics of high-temperature cuprous sulfide
- Sintering of Si3N4 with Li-exchanged zeolite additive
- Effect of LiYO2 addition on sintering behavior and indentation properties of silicon nitride ceramics
- Mechanism of quasi-viscous flow of zinc single crystals
- The absolute thermoelectric power of chromium, molybdenum, and tungsten
- Modelling of metal – mould interface resistance in the Al-11.5 wt.% Si alloy casting process
- Kösterpreis
- Award/Preisverleihung
- Notifications
- Personal
- Conferences