Direkt zum Inhalt
  • Paul Scherrer Institut PSI
  • PSI Research, Labs & User Services

Digital User Office

  • Digital User Office
  • DE
  • EN
  • FR
Paul Scherrer Institut (PSI)
Suche
Paul Scherrer Institut (PSI)

Hauptnavigation

  • Research at PSIÖffnen dieses Hauptmenu Punktes
    • Research Initiatives
    • Ethics and Research integrity
    • Scientific Highlights
    • Scientific Events
    • Scientific Career
    • PSI-FELLOW
    • PSI Data Policy
  • Research Divisions and LabsÖffnen dieses Hauptmenu Punktes
    • Overview
    • Research with Neutrons and Muons
    • Photon Science
    • Energy and Environment
    • Nuclear Energy and Safety
    • Biology and Chemistry
    • Scientific Computing, Theory and Data
    • Large Research Facilities
  • Facilities and InstrumentsÖffnen dieses Hauptmenu Punktes
    • Overview
    • Large Research Facilities
    • Facilities
    • PSI Facility Newsletter
  • PSI User ServicesÖffnen dieses Hauptmenu Punktes
    • User Office
    • Methods at the PSI User Facilities
    • Proposals for beam time
    • Proposal Deadlines
    • Data Analysis Service (PSD)
    • EU support programmes
  • New ProjectsÖffnen dieses Hauptmenu Punktes
    • SLS 2.0
    • IMPACT
  • DE
  • EN
  • FR

Digital User Office (mobile)

  • Digital User Office

Sie befinden sich hier:

  1. PSI Home
  2. Labs & User Services
  3. NES
  4. LNM
  5. Research Programs
  6. Materials Ageing & Structural Integrity
  7. Helium Effects on IASCC

Sekundäre Navigation

Laboratory for Nuclear Materials

  • About LNM
  • Events
  • Organisation / People
  • Research Programs Ausgeklappter Submenü Punkt
    • Advanced Nuclear Materials
    • Nuclear Fuels
      • H-Uptake
      • Cladding Mechanics
      • Fuel Burn-Up
      • Cross-Cut Synchrotron
    • Materials Ageing & Structural Integrity Ausgeklappter Submenü Punkt
      • ZINC
      • PLiM
      • PROBAB
      • SAFE
      • DIAGNOSTICS
      • Helium Effects on IASCC
      • PARENT
      • NORA
      • CPFEM
  • Experimental Facilities
    • Hotlab
    • Hydrogenation
    • SINQ Target Irradiation Program (STIP)
    • In-situ Creep under Irradiation Facility
    • Electron Microscopy Facility
    • Metallography
    • Mechanical Testing
    • Corrosion Testing
    • Non-Destructive Characterization
    • Beamline Techniques at SINQ/SLS
  • Teaching and Education
    • List of PhD Theses
    • List of Master Theses
  • Advisory Committee
  • Partners / Links
  • Publications
  • Scientific Highlights

Info message

Dieser Inhalt ist nicht auf Deutsch verfügbar.

Helium Effects on IASCC

The formation and growth of cracks by irradiation-assisted stress corrosion cracking (IASCC) of stainless steel reactor internals is a critical issue for the safe long-term operation of LWRs and such cracking instances already occurred in Swiss reactors (core shroud in KKM, baffle bolts in KKB). Recent studies show that a huge amount of helium (up to 1000 atomic parts per million) can be accumulated in some reactor internal components of pressurized water reactors (PWR) after long-term operation (above 40 years) that could significantly increase (or even dominate) the IASCC susceptibility at high doses in addition to conventional mechanism like irradiation-induced segregation and hardening etc. and that material test reactor data thus potentially underestimate the real IASCC concern for PWR long-term operation.

The main scientific goal of this new PhD project, which is a joint activity of ANM and INTEGER and is supported by swissnuclear, is to make a contribution on the clarification of the unexplored role of He in IASCC of austenitic stainless steels and to determine thresholds concentration for He effects on mechanical properties and IASCC in air and high-temperature water, respectively. The project will thus provide an important contribution to the assurance of the safe long-term operation of Swiss PWRs (Beznau-I is the oldest PWR world-wide) and directly contributes to the maintenance of expertise and education of young specialists in the field of material ageing of reactor internals.

Mit Sidebar

Contact

Hans-Peter Seifert

Paul Scherrer Institute
OHSA B09
CH-5232 Villigen PSI

Telephone:
+41 56 310 4402
E-mail:
hans-peter.seifert@psi.ch

top

Fussbereich

Paul Scherrer Institut

Forschungsstrasse 111
5232 Villigen PSI
Schweiz

Telefon: +41 56 310 21 11
Telefax: +41 56 310 21 99

Der Weg zu uns
Kontakt

Besucherzentrum psi forum
Schülerlabor iLab
Zentrum für Protonentherapie
PSI Bildungszentrum
PSI Guest House (in english)
PSI Gastronomie
psi forum-Shop

 

Service & Support

  • Telefonbuch
  • User Office
  • Accelerator Status
  • Publikationen des PSI
  • Lieferanten
  • E-Rechnung
  • Computing
  • Sicherheit

Karriere

  • Arbeiten am PSI
  • Stellenangebote
  • Aus- und Weiterbildung
  • Career Center
  • Berufsbildung
  • PSI Bildungszentrum

Für die Medien

  • Das PSI in Kürze
  • Zahlen und Fakten
  • Mediacorner
  • Medienmitteilungen
  • Social Media

Folgen Sie uns: Twitter (deutsch) LinkedIn Youtube Facebook Instagram Issuu RSS

Footer legal

  • Impressum
  • Nutzungsbedingungen
  • Editoren-Login