Fundamentals of Hydrogen in Structural Metals at the Atomic Scale

Projektinformationen

HydMet

ID Finanzhilfevereinbarung: 805065

DOI 10.3030/805065

EK-Unterschriftsdatum 22 Oktober 2018

Startdatum 1 Dezember 2018

Enddatum 30 September 2024

Finanziert unter

• EXCELLENT SCIENCE - European Research Council (ERC)

Gesamtkosten € 1 497 959,00

EU-Beitrag € 1 497 959,00

Koordiniert durch

FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
Germany

Ziel

H is an element that plays an important role in the production and efficient usage of energy as it significantly influences the way we produce and consume energy: In high-strength materials, the usability and service life is limited by H induced failure. These materials are key in transport systems, wind power and H storage. Despite the enormous economic significance, little is known fundamentally about the underlying damage mechanisms, which are inherently playing out on the atomic scale.

The PI’s team will use atom probe tomography, an atomic scale 3D microscopy method to systematically analyse the location and pathways of H in the microstructure and shed light on damage mechanisms in Fe and Ni based materials. This will include vacancies/clusters (0D), dislocations (1D), interfaces (2D) and second phased (3D). The approach will be combined with micro-mechanics to investigate the involvement of H in fracture behaviour. We will measure the amount of H at dislocations required for enhanced plasticity, in the plastic wake of a crack and at the crack tip. In production materials, we will determine the amount of H at identified traps after processing as well as penetration pathways into the material. Finally, we will clarify the contribution of H to a important problem for wind power generation: white-etching cracks.

These experiments are now made possible in a commercial atom probe by using 2H (D) charging combined with cryo specimen transfers to avoid H loss. In the project, the team will go a step further and build an atom probe with ultra-low H background to enable the direct detection of 1H, enabling analysis without tracers.

The resulting knowledge will greatly enhance our knowledge on the fundamentals of H in metals at the atomic scale. This will lead to increased predictability of failures, the rational design of H resistant high strength materials and protection measures and with it great cost savings especially in renewable energy generation and electromobility.

Wissenschaftliches Gebiet

• natural sciences › physical sciences › optics › microscopy
• engineering and technology › environmental engineering › energy and fuels › renewable energy › wind power

Schlüsselbegriffe

• H embrittlement
• atom probe tomography

Programm/Programme

• H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC) Main Programme

Thema/Themen

• ERC-2018-STG - ERC Starting Grant

Aufforderung zur Vorschlagseinreichung

ERC-2018-STG

Finanzierungsplan

ERC-STG - Starting Grant

Gastgebende Einrichtung

FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG

• Netto-EU-Beitrag: € 1 497 959,00
• Adresse: SCHLOSSPLATZ 4 ; 91054 Erlangen ; Deutschland
• Region: Bayern › Mittelfranken › Erlangen, Kreisfreie Stadt
• Aktivitätstyp: Higher or Secondary Education Establishments
• Gesamtkosten: € 1 497 959,00

Begünstigte (1)

FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG

Deutschland

• Netto-EU-Beitrag: € 1 497 959,00
• Adresse: SCHLOSSPLATZ 4 ; 91054 Erlangen
• Region: Bayern › Mittelfranken › Erlangen, Kreisfreie Stadt
• Aktivitätstyp: Higher or Secondary Education Establishments
• Gesamtkosten: € 1 497 959,00