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Some proposed mechanisms for internal cladding corrosion

Abstract

In spite of extensive research during recent years, a comprehensive model for internal cladding corrosion in fast reactor oxide fuel pins has not yet been established. In this paper, a model is proposed which accounts for many of the features normally associated with this type of corrosion. The model is composed of a number of parts which describe the chronological sequence of events at the fuel/cladding interface. The corrosion reaction is visualised as being primarily chemical in character, involving the cladding steel, the fuel and the more aggressive fission products, notably caesium in the presence of oxygen. The model attempts to explain how corrosion starts, how it depends on the oxygen potential, why it occurs non-uniformly; also covered are phase changes within the cladding steel and morphological features such as the intergranular form of attack and the distribution of corrosion products in the fuel/cladding gap. (author)
Authors:
Bradbury, M H; Pickering, S; Whitlow, W H [1] 
  1. EURATOM (United Kingdom)
Publication Date:
Apr 01, 1977
Product Type:
Conference
Report Number:
IWGFR-16
Reference Number:
EDB-01:020720
Resource Relation:
Conference: IAEA-IWGFR technical committee meeting on fuel and cladding interaction, Tokyo (Japan), 21-25 Feb 1977; Other Information: 38 refs, 17 figs, 1 tab; PBD: Apr 1977; Related Information: In: Technical committee meeting on fuel and cladding interaction. Summary report, 208 pages.
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; CESIUM; CLADDING; CORROSION; FAST REACTORS; FISSION PRODUCTS; FUEL PINS; FUEL-CLADDING INTERACTIONS; INTERGRANULAR CORROSION; OXYGEN POTENTIAL; SIMULATION; STEELS
OSTI ID:
20137467
Research Organizations:
International Atomic Energy Agency, International Working Group on Fast Reactors, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
TRN: XA0100193006562
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
page(s) 51-64
Announcement Date:

Citation Formats

Bradbury, M H, Pickering, S, and Whitlow, W H. Some proposed mechanisms for internal cladding corrosion. IAEA: N. p., 1977. Web.
Bradbury, M H, Pickering, S, & Whitlow, W H. Some proposed mechanisms for internal cladding corrosion. IAEA.
Bradbury, M H, Pickering, S, and Whitlow, W H. 1977. "Some proposed mechanisms for internal cladding corrosion." IAEA.
@misc{etde_20137467,
title = {Some proposed mechanisms for internal cladding corrosion}
author = {Bradbury, M H, Pickering, S, and Whitlow, W H}
abstractNote = {In spite of extensive research during recent years, a comprehensive model for internal cladding corrosion in fast reactor oxide fuel pins has not yet been established. In this paper, a model is proposed which accounts for many of the features normally associated with this type of corrosion. The model is composed of a number of parts which describe the chronological sequence of events at the fuel/cladding interface. The corrosion reaction is visualised as being primarily chemical in character, involving the cladding steel, the fuel and the more aggressive fission products, notably caesium in the presence of oxygen. The model attempts to explain how corrosion starts, how it depends on the oxygen potential, why it occurs non-uniformly; also covered are phase changes within the cladding steel and morphological features such as the intergranular form of attack and the distribution of corrosion products in the fuel/cladding gap. (author)}
place = {IAEA}
year = {1977}
month = {Apr}
}