Reirradiation response rate of a high-copper reactor pressure vessel Weld

S. K. Iskander; R. K. Nanstad; C. A. Baldwin; D. W. Heatherly; M. K. Miller; I. Remec

Reirradiation response rate of a high-copper reactor pressure vessel Weld

S. K. Iskander, R. K. Nanstad, C. A. Baldwin, D. W. Heatherly, M. K. Miller, I. Remec

STS Project Technical Systems

Research output: Contribution to journal › Conference article › peer-review

Abstract

The Charpy impact response of reirradiated Heavy-Section Steel Irradiation (HSSI) Program Weld 73W has been determined at three fluence levels. The Charpy specimens had previously been irradiated at 288°C to 1.8 × 10¹⁹ cm^-2 (E > 1 MeV) and annealed at 454°C for 168 h. The results show that the change in the 41-J Charpy energy level transition temperature (ΔTT_41-J) of the reirradiated specimens is slightly higher than predicted by the vertical shift method, but significantly legs than predicted by the lateral shift method. Previous results have also shown that the upper-shelf energy (USE) over-recovers as a consequence of annealing, which may explain why the USE value after a significant amount of reirradiation is approximately equal to the USE value in the unirradiated condition.

Original language	English
Pages (from-to)	302-314
Number of pages	13
Journal	Institution of Chemical Engineers Symposium Series
Issue number	148
State	Published - 2000
Event	Hazards XVI Analysing the Past, Planning the Future - Manchester, United Kingdom Duration: Nov 6 2001 → Nov 8 2001

Keywords

Annealing
Charpy V-notch
Copper
Irradiation
Neutron
Reactor pressure vessel
Weld metal

Cite this

@article{401695163d8c497bae749235ae2ba0c2,

title = "Reirradiation response rate of a high-copper reactor pressure vessel Weld",

abstract = "The Charpy impact response of reirradiated Heavy-Section Steel Irradiation (HSSI) Program Weld 73W has been determined at three fluence levels. The Charpy specimens had previously been irradiated at 288°C to 1.8 × 1019 cm-2 (E > 1 MeV) and annealed at 454°C for 168 h. The results show that the change in the 41-J Charpy energy level transition temperature (ΔTT41-J) of the reirradiated specimens is slightly higher than predicted by the vertical shift method, but significantly legs than predicted by the lateral shift method. Previous results have also shown that the upper-shelf energy (USE) over-recovers as a consequence of annealing, which may explain why the USE value after a significant amount of reirradiation is approximately equal to the USE value in the unirradiated condition.",

keywords = "Annealing, Charpy V-notch, Copper, Irradiation, Neutron, Reactor pressure vessel, Weld metal",

author = "Iskander, {S. K.} and Nanstad, {R. K.} and Baldwin, {C. A.} and Heatherly, {D. W.} and Miller, {M. K.} and I. Remec",

year = "2000",

language = "English",

pages = "302--314",

journal = "Institution of Chemical Engineers Symposium Series",

issn = "0307-0492",

number = "148",

note = "Hazards XVI Analysing the Past, Planning the Future ; Conference date: 06-11-2001 Through 08-11-2001",

}

TY - JOUR

T1 - Reirradiation response rate of a high-copper reactor pressure vessel Weld

AU - Iskander, S. K.

AU - Nanstad, R. K.

AU - Baldwin, C. A.

AU - Heatherly, D. W.

AU - Miller, M. K.

AU - Remec, I.

PY - 2000

Y1 - 2000

N2 - The Charpy impact response of reirradiated Heavy-Section Steel Irradiation (HSSI) Program Weld 73W has been determined at three fluence levels. The Charpy specimens had previously been irradiated at 288°C to 1.8 × 1019 cm-2 (E > 1 MeV) and annealed at 454°C for 168 h. The results show that the change in the 41-J Charpy energy level transition temperature (ΔTT41-J) of the reirradiated specimens is slightly higher than predicted by the vertical shift method, but significantly legs than predicted by the lateral shift method. Previous results have also shown that the upper-shelf energy (USE) over-recovers as a consequence of annealing, which may explain why the USE value after a significant amount of reirradiation is approximately equal to the USE value in the unirradiated condition.

AB - The Charpy impact response of reirradiated Heavy-Section Steel Irradiation (HSSI) Program Weld 73W has been determined at three fluence levels. The Charpy specimens had previously been irradiated at 288°C to 1.8 × 1019 cm-2 (E > 1 MeV) and annealed at 454°C for 168 h. The results show that the change in the 41-J Charpy energy level transition temperature (ΔTT41-J) of the reirradiated specimens is slightly higher than predicted by the vertical shift method, but significantly legs than predicted by the lateral shift method. Previous results have also shown that the upper-shelf energy (USE) over-recovers as a consequence of annealing, which may explain why the USE value after a significant amount of reirradiation is approximately equal to the USE value in the unirradiated condition.

KW - Annealing

KW - Charpy V-notch

KW - Copper

KW - Irradiation

KW - Neutron

KW - Reactor pressure vessel

KW - Weld metal

UR - http://www.scopus.com/inward/record.url?scp=0034459799&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0034459799

SN - 0307-0492

SP - 302

EP - 314

JO - Institution of Chemical Engineers Symposium Series

JF - Institution of Chemical Engineers Symposium Series

IS - 148

T2 - Hazards XVI Analysing the Past, Planning the Future

Y2 - 6 November 2001 through 8 November 2001

ER -

Reirradiation response rate of a high-copper reactor pressure vessel Weld

Abstract

Keywords

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