Effect of radiation damage on BWR core-shroud cracking

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

A model is presented that estimates the effect of radiation damage on stress corrosion cracking (SCC), resulting from microstructural evolution induced by irradiation. The model is based on the Ford-Andresen film-rupture and slip-dissolution model and on the observation that the crack propagation rate increases as the material hardens. The model relates the neutron and gamma exposure to the irradiation hardening and consequent increase in the crack tip strain rate. A chemical rate theory model was employed to describe the evolution of microstructure in stainless steel leading to radiation hardening. The increase in yield stress can be correlated to an increase in the crack tip strain rate, and thus to SCC behavior. This approach was used to evaluate the effects of irradiation hardening on core shroud cracking. The results show that hardening can have a substantial effect on core shroud cracking.

Original languageEnglish (US)
Pages (from-to)483-488
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume540
StatePublished - Jan 1 1999
EventProceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998' - Boston, MA, USA
Duration: Nov 30 1998Dec 3 1998

Fingerprint

shrouds
Radiation damage
radiation damage
hardening
Hardening
stress corrosion cracking
crack tips
Irradiation
Stress corrosion cracking
Crack tips
strain rate
irradiation
Strain rate
radiation hardening
Radiation hardening
Stainless Steel
Microstructural evolution
crack propagation
Yield stress
stainless steels

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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abstract = "A model is presented that estimates the effect of radiation damage on stress corrosion cracking (SCC), resulting from microstructural evolution induced by irradiation. The model is based on the Ford-Andresen film-rupture and slip-dissolution model and on the observation that the crack propagation rate increases as the material hardens. The model relates the neutron and gamma exposure to the irradiation hardening and consequent increase in the crack tip strain rate. A chemical rate theory model was employed to describe the evolution of microstructure in stainless steel leading to radiation hardening. The increase in yield stress can be correlated to an increase in the crack tip strain rate, and thus to SCC behavior. This approach was used to evaluate the effects of irradiation hardening on core shroud cracking. The results show that hardening can have a substantial effect on core shroud cracking.",
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Effect of radiation damage on BWR core-shroud cracking. / Kwon, Jun; Motta, Arthur Thompson.

In: Materials Research Society Symposium - Proceedings, Vol. 540, 01.01.1999, p. 483-488.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Effect of radiation damage on BWR core-shroud cracking

AU - Kwon, Jun

AU - Motta, Arthur Thompson

PY - 1999/1/1

Y1 - 1999/1/1

N2 - A model is presented that estimates the effect of radiation damage on stress corrosion cracking (SCC), resulting from microstructural evolution induced by irradiation. The model is based on the Ford-Andresen film-rupture and slip-dissolution model and on the observation that the crack propagation rate increases as the material hardens. The model relates the neutron and gamma exposure to the irradiation hardening and consequent increase in the crack tip strain rate. A chemical rate theory model was employed to describe the evolution of microstructure in stainless steel leading to radiation hardening. The increase in yield stress can be correlated to an increase in the crack tip strain rate, and thus to SCC behavior. This approach was used to evaluate the effects of irradiation hardening on core shroud cracking. The results show that hardening can have a substantial effect on core shroud cracking.

AB - A model is presented that estimates the effect of radiation damage on stress corrosion cracking (SCC), resulting from microstructural evolution induced by irradiation. The model is based on the Ford-Andresen film-rupture and slip-dissolution model and on the observation that the crack propagation rate increases as the material hardens. The model relates the neutron and gamma exposure to the irradiation hardening and consequent increase in the crack tip strain rate. A chemical rate theory model was employed to describe the evolution of microstructure in stainless steel leading to radiation hardening. The increase in yield stress can be correlated to an increase in the crack tip strain rate, and thus to SCC behavior. This approach was used to evaluate the effects of irradiation hardening on core shroud cracking. The results show that hardening can have a substantial effect on core shroud cracking.

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