Influence of post irradiation annealing on the mechanical properties and defect structure of AISI 304 steel

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Influence of post irradiation annealing on the mechanical properties and defect structure of AISI 304 steel. / Van Renterghem, Wouter; Van Dyck, Steven; Al Mazouzi, Abderrahim.

International symposium Fontevraud 7, book of abstracts. Paris, France, 2010.

Research output: Contribution to report/book/conference proceedingsIn-proceedings paperpeer-review

Harvard

Van Renterghem, W, Van Dyck, S & Al Mazouzi, A 2010, Influence of post irradiation annealing on the mechanical properties and defect structure of AISI 304 steel. in International symposium Fontevraud 7, book of abstracts. Paris, France, Fontevraud 7, Avignon, France, 2010-09-26.

Vancouver

Van Renterghem W, Van Dyck S, Al Mazouzi A. Influence of post irradiation annealing on the mechanical properties and defect structure of AISI 304 steel. In International symposium Fontevraud 7, book of abstracts. Paris, France. 2010

Author

Van Renterghem, Wouter ; Van Dyck, Steven ; Al Mazouzi, Abderrahim. / Influence of post irradiation annealing on the mechanical properties and defect structure of AISI 304 steel. International symposium Fontevraud 7, book of abstracts. Paris, France, 2010.

Bibtex - Download

@inproceedings{04a71c7d02d54f8dbc9837f77f32cb24,
title = "Influence of post irradiation annealing on the mechanical properties and defect structure of AISI 304 steel",
abstract = "The effect of post irradiation annealing on the mechanical properties and the radiation induced defect structure was investigated on stainless steel, of type AISI 304, that was irradiated up to 24 dpa in the decommissioned Chooz A reactor. The material has been investigated both in the as-irradiated state as well as after post irradiation annealing. In the as-irradiated specimen the typical radiation induced defects were found as well as NI3SIprecipitates. Annealing at 400°C had almost no effect on the radiation induced defects, but annealing at 500°C resulted in the immediate unfaulting of the Frank loops. As to the mechanical properties, annealing at 400°C did not strongly affect the yield strength and ductility, although the fraction of intergranular fracture during slow strain rate tensile tests (SSRT), under pressurised water reactor (PWR) condition, was significantly reduced. Annealing at 500°C reduced the yield strength and restored substantially the ductility and the strain hardening capability. The microstructure investigated by transmission electron microscopy correlates to the mechanical test results. It was found that the observed defect changes after post irradiation annealing provide a reasonable explanation for the observed changes of the mechanical properties obtained from SSRT under PWR chemical conditions.",
keywords = "Transmission electron microscopy, stainless steel, radiation induced defects, annealing",
author = "{Van Renterghem}, Wouter and {Van Dyck}, Steven and {Al Mazouzi}, Abderrahim",
note = "Score = 3; Fontevraud 7 ; Conference date: 26-09-2010 Through 30-09-2010",
year = "2010",
month = sep,
language = "English",
booktitle = "International symposium Fontevraud 7, book of abstracts",

}

RIS - Download

TY - GEN

T1 - Influence of post irradiation annealing on the mechanical properties and defect structure of AISI 304 steel

AU - Van Renterghem, Wouter

AU - Van Dyck, Steven

AU - Al Mazouzi, Abderrahim

N1 - Score = 3

PY - 2010/9

Y1 - 2010/9

N2 - The effect of post irradiation annealing on the mechanical properties and the radiation induced defect structure was investigated on stainless steel, of type AISI 304, that was irradiated up to 24 dpa in the decommissioned Chooz A reactor. The material has been investigated both in the as-irradiated state as well as after post irradiation annealing. In the as-irradiated specimen the typical radiation induced defects were found as well as NI3SIprecipitates. Annealing at 400°C had almost no effect on the radiation induced defects, but annealing at 500°C resulted in the immediate unfaulting of the Frank loops. As to the mechanical properties, annealing at 400°C did not strongly affect the yield strength and ductility, although the fraction of intergranular fracture during slow strain rate tensile tests (SSRT), under pressurised water reactor (PWR) condition, was significantly reduced. Annealing at 500°C reduced the yield strength and restored substantially the ductility and the strain hardening capability. The microstructure investigated by transmission electron microscopy correlates to the mechanical test results. It was found that the observed defect changes after post irradiation annealing provide a reasonable explanation for the observed changes of the mechanical properties obtained from SSRT under PWR chemical conditions.

AB - The effect of post irradiation annealing on the mechanical properties and the radiation induced defect structure was investigated on stainless steel, of type AISI 304, that was irradiated up to 24 dpa in the decommissioned Chooz A reactor. The material has been investigated both in the as-irradiated state as well as after post irradiation annealing. In the as-irradiated specimen the typical radiation induced defects were found as well as NI3SIprecipitates. Annealing at 400°C had almost no effect on the radiation induced defects, but annealing at 500°C resulted in the immediate unfaulting of the Frank loops. As to the mechanical properties, annealing at 400°C did not strongly affect the yield strength and ductility, although the fraction of intergranular fracture during slow strain rate tensile tests (SSRT), under pressurised water reactor (PWR) condition, was significantly reduced. Annealing at 500°C reduced the yield strength and restored substantially the ductility and the strain hardening capability. The microstructure investigated by transmission electron microscopy correlates to the mechanical test results. It was found that the observed defect changes after post irradiation annealing provide a reasonable explanation for the observed changes of the mechanical properties obtained from SSRT under PWR chemical conditions.

KW - Transmission electron microscopy

KW - stainless steel

KW - radiation induced defects

KW - annealing

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_108594

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_108594_2

UR - http://knowledgecentre.sckcen.be/so2/bibref/7260

M3 - In-proceedings paper

BT - International symposium Fontevraud 7, book of abstracts

CY - Paris, France

T2 - Fontevraud 7

Y2 - 26 September 2010 through 30 September 2010

ER -

ID: 333802