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Workshop: Hydrogen Analysis by Atom Probe Tomography

16–18 Apr 2024
Max-Planck-Institut für Eisenforschung GmbH
Europe/Berlin timezone

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Session

Invited talks

16 Apr 2024, 09:00
Room 203 (large seminar room) (Max-Planck-Institut für Eisenforschung GmbH)

Room 203 (large seminar room)

Max-Planck-Institut für Eisenforschung GmbH

Max-Planck-Str. 1 40237 Düsseldorf

Presentation materials

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  1. 29. I knew you were trouble: analyzing hydrogen analysis by APT
    Prof. Baptiste Gault (Max-Planck-Institute für Eisenforschung GmBH)
    16/04/2024, 09:00
  2. 12. Controlled boron segregation in martensitic steels to improve the resistance against hydrogen embrittlement
    Guillaume Hachet (Max-Planck-Institut für Eisenforschung)
    16/04/2024, 11:05

    Hydrogen is nowadays viewed as a key element for developing low-carbon energies, but it diffuses in metals and alloys and segregates in crystalline defects, reducing the ductility of the material. This phenomenon is well-known and called hydrogen embrittlement (HE). In this work, we aim to reduce the negative impact of hydrogen by adding boron at interfaces to improve the resistance against...

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  3. 20. Mapping hydrogen activity at high local resolution by scanning Kelvin probe techniques
    Michael Rohwerder (Max-Planck-Institut für Eisenforschung)
    17/04/2024, 09:00

    Scanning Kelvin Probe (SKP) techniques have now been in use for mapping hydrogen in materials for about a decade. Different from techniques such as Secondary Ion Mass Spectroscopy (SIMS) or Atom Probe Tomography (APT) they do not measure the hydrogen concentration at a certain site, but rather the local activity. In time-resolved experiments they can provide information about how much hydrogen...

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  4. 18. Strategy development for measurements of hydrogen in APT and environmental TEM
    Prof. Astrid Pundt (KIT)
    17/04/2024, 10:45

    Hydrogen as the smallest atom of all elements requires special care when one wants to detect it. Because of its presence in the background gas of any UHV-system, its capability to propagate in materials by quantum mechanical tunnelling and the presence of clean surfaces during the APT analysis of the nano-sized tips are challenging tasks to address. Especially the quantitative measurement is...

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  5. 27. Micromechanical testing during hydrogen charging
    Dr Maria Jazmin Duarte (Max-Planck-Institut für Eisenforschung GmbH)
    17/04/2024, 14:30

    Understanding the effects of hydrogen in materials became a pressing topic with the imminent shift towards green technologies and the adoption of hydrogen as energy carrier. It is expected that the use of hydrogen will increase in all industries, together with the need for safe transport and storage and consequently the development of new materials and technologies to cope with it. A critical...

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  6. 6. Hydrogen Localisation in Metallurgical Samples with High Resolution Secondary Ion Mass Spectrometry (NanoSIMS)
    Katie Moore (University of Manchester)
    18/04/2024, 09:00

    The NanoSIMS is emerging as a powerful tool to study complex problems in materials science and, along with atom probe tomography, is one of the few techniques able to localise hydrogen and deuterium at microstructurally relevant length scales. The NanoSIMS is a high-resolution secondary ion mass spectrometry instrument capable of chemical mapping at <100 nm spatial resolution, detection limits...

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