Effect of crack length-to-width ratio on crack resistance of high Cr-ODS steels at high temperature for fuel cladding application

Research output: Contribution to journalArticle

Standard

Effect of crack length-to-width ratio on crack resistance of high Cr-ODS steels at high temperature for fuel cladding application. / Chaouadi, Rachid; Gavrilov, Serguei; Ramesh, Mage.

In: Journal of Nuclear Materials, Vol. 442, No. 1-3, 15.11.2013, p. 425-433.

Research output: Contribution to journalArticle

Bibtex - Download

@article{32d8c3dd4b144f8b93281b7a68ab32c5,
title = "Effect of crack length-to-width ratio on crack resistance of high Cr-ODS steels at high temperature for fuel cladding application",
abstract = "Oxide dispersion strengthened (ODS) steels with high Cr-content are extensively investigated in Europe, Japan and United States by the nuclear materials community for application to both advanced fission reactors and fusion systems. In comparison to standard high Cr-steels, the expected operation temperature range can be extended to 650 C or more because of their improved creep resistance. However, their crack resistance behavior in the high temperature range was less investigated. The aim of the present paper is to provide some insight on their fracture behavior at high temperature and different crack configurations, in particular shallow crack. Crack resistance measurements were performed on a 12{\%}Cr-ODS steel using compact tension specimens at 650 C considering both shallow and deep crack configurations. Finite element calculations were performed on a typical fuel cladding tube geometry to assess the performances in terms of crack resistance. It is found that the temperature gradient across the wall should be maintained low enough to avoid cracking. After irradiation in corrosive environment, the boundary conditions might be further affected limiting therefore the lifetime of ODS cladding.",
keywords = "high temperature testing, cladding, crack resistance curve, ODS",
author = "Rachid Chaouadi and Serguei Gavrilov and Mage Ramesh",
note = "Score=10",
year = "2013",
month = "11",
day = "15",
doi = "10.1016/j.nucmat.2013.02.017",
language = "English",
volume = "442",
pages = "425--433",
journal = "Journal of Nuclear Materials",
issn = "0022-3115",
publisher = "Elsevier",
number = "1-3",

}

RIS - Download

TY - JOUR

T1 - Effect of crack length-to-width ratio on crack resistance of high Cr-ODS steels at high temperature for fuel cladding application

AU - Chaouadi, Rachid

AU - Gavrilov, Serguei

AU - Ramesh, Mage

N1 - Score=10

PY - 2013/11/15

Y1 - 2013/11/15

N2 - Oxide dispersion strengthened (ODS) steels with high Cr-content are extensively investigated in Europe, Japan and United States by the nuclear materials community for application to both advanced fission reactors and fusion systems. In comparison to standard high Cr-steels, the expected operation temperature range can be extended to 650 C or more because of their improved creep resistance. However, their crack resistance behavior in the high temperature range was less investigated. The aim of the present paper is to provide some insight on their fracture behavior at high temperature and different crack configurations, in particular shallow crack. Crack resistance measurements were performed on a 12%Cr-ODS steel using compact tension specimens at 650 C considering both shallow and deep crack configurations. Finite element calculations were performed on a typical fuel cladding tube geometry to assess the performances in terms of crack resistance. It is found that the temperature gradient across the wall should be maintained low enough to avoid cracking. After irradiation in corrosive environment, the boundary conditions might be further affected limiting therefore the lifetime of ODS cladding.

AB - Oxide dispersion strengthened (ODS) steels with high Cr-content are extensively investigated in Europe, Japan and United States by the nuclear materials community for application to both advanced fission reactors and fusion systems. In comparison to standard high Cr-steels, the expected operation temperature range can be extended to 650 C or more because of their improved creep resistance. However, their crack resistance behavior in the high temperature range was less investigated. The aim of the present paper is to provide some insight on their fracture behavior at high temperature and different crack configurations, in particular shallow crack. Crack resistance measurements were performed on a 12%Cr-ODS steel using compact tension specimens at 650 C considering both shallow and deep crack configurations. Finite element calculations were performed on a typical fuel cladding tube geometry to assess the performances in terms of crack resistance. It is found that the temperature gradient across the wall should be maintained low enough to avoid cracking. After irradiation in corrosive environment, the boundary conditions might be further affected limiting therefore the lifetime of ODS cladding.

KW - high temperature testing

KW - cladding

KW - crack resistance curve

KW - ODS

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/27906573

U2 - 10.1016/j.nucmat.2013.02.017

DO - 10.1016/j.nucmat.2013.02.017

M3 - Article

VL - 442

SP - 425

EP - 433

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

IS - 1-3

ER -

ID: 3750933