Application of advanced master curve approaches on WWER-440 reactor pressure vessel steels

H.-W. Viehrig (Corresponding Author), M. Scibetta, Kim Wallin

Research output: Contribution to journalArticleScientificpeer-review

20 Citations (Scopus)

Abstract

The master curve (MC) approach used to measure the transition temperature, T0, was standarised in the ASTM Standard Test Method E 1921 in 1997. The basic MC approach for analysis of fracture test results is intended for macroscopically homogeneous steels with a body centred cubic (ferritic) structure only. In reality, due to the manufacturing process, the steels in question are seldom fully macroscopically homogeneous.

The fracture toughness values measured on Charpy size SE(B) specimens of base metal from the Greifswald Unit 8 rector pressure vessel (RPV) show large scatter. The basic MC evaluation following ASTM E1921 supplies a MC with many fracture toughness values which lie below the 5% fracture probability line. It is therefore suspected that this material is macroscopically inhomogeneous. In this paper, two recent extensions of the MC for inhomogeneous materials are applied to these fracture toughness data.
Original languageEnglish
Pages (from-to)584-592
Number of pages9
JournalInternational Journal of Pressure Vessels and Piping
Volume83
Issue number8
DOIs
Publication statusPublished - 2006
MoE publication typeA1 Journal article-refereed

Fingerprint

Steel structures
Fracture toughness
Steel
Pressure vessels
Superconducting transition temperature
Metals

Keywords

  • reactor pressure vessel steel
  • pressure vessel
  • reactor pressure vessel
  • steels
  • fracture toughness
  • master curve
  • inhomogeneous material
  • random inhomogeneity
  • maximum likelihood procedure
  • SINTAP procedure

Cite this

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title = "Application of advanced master curve approaches on WWER-440 reactor pressure vessel steels",
abstract = "The master curve (MC) approach used to measure the transition temperature, T0, was standarised in the ASTM Standard Test Method E 1921 in 1997. The basic MC approach for analysis of fracture test results is intended for macroscopically homogeneous steels with a body centred cubic (ferritic) structure only. In reality, due to the manufacturing process, the steels in question are seldom fully macroscopically homogeneous.The fracture toughness values measured on Charpy size SE(B) specimens of base metal from the Greifswald Unit 8 rector pressure vessel (RPV) show large scatter. The basic MC evaluation following ASTM E1921 supplies a MC with many fracture toughness values which lie below the 5{\%} fracture probability line. It is therefore suspected that this material is macroscopically inhomogeneous. In this paper, two recent extensions of the MC for inhomogeneous materials are applied to these fracture toughness data.",
keywords = "reactor pressure vessel steel, pressure vessel, reactor pressure vessel, steels, fracture toughness, master curve, inhomogeneous material, random inhomogeneity, maximum likelihood procedure, SINTAP procedure",
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journal = "International Journal of Pressure Vessels and Piping",
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Application of advanced master curve approaches on WWER-440 reactor pressure vessel steels. / Viehrig, H.-W. (Corresponding Author); Scibetta, M.; Wallin, Kim.

In: International Journal of Pressure Vessels and Piping, Vol. 83, No. 8, 2006, p. 584-592.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Application of advanced master curve approaches on WWER-440 reactor pressure vessel steels

AU - Viehrig, H.-W.

AU - Scibetta, M.

AU - Wallin, Kim

PY - 2006

Y1 - 2006

N2 - The master curve (MC) approach used to measure the transition temperature, T0, was standarised in the ASTM Standard Test Method E 1921 in 1997. The basic MC approach for analysis of fracture test results is intended for macroscopically homogeneous steels with a body centred cubic (ferritic) structure only. In reality, due to the manufacturing process, the steels in question are seldom fully macroscopically homogeneous.The fracture toughness values measured on Charpy size SE(B) specimens of base metal from the Greifswald Unit 8 rector pressure vessel (RPV) show large scatter. The basic MC evaluation following ASTM E1921 supplies a MC with many fracture toughness values which lie below the 5% fracture probability line. It is therefore suspected that this material is macroscopically inhomogeneous. In this paper, two recent extensions of the MC for inhomogeneous materials are applied to these fracture toughness data.

AB - The master curve (MC) approach used to measure the transition temperature, T0, was standarised in the ASTM Standard Test Method E 1921 in 1997. The basic MC approach for analysis of fracture test results is intended for macroscopically homogeneous steels with a body centred cubic (ferritic) structure only. In reality, due to the manufacturing process, the steels in question are seldom fully macroscopically homogeneous.The fracture toughness values measured on Charpy size SE(B) specimens of base metal from the Greifswald Unit 8 rector pressure vessel (RPV) show large scatter. The basic MC evaluation following ASTM E1921 supplies a MC with many fracture toughness values which lie below the 5% fracture probability line. It is therefore suspected that this material is macroscopically inhomogeneous. In this paper, two recent extensions of the MC for inhomogeneous materials are applied to these fracture toughness data.

KW - reactor pressure vessel steel

KW - pressure vessel

KW - reactor pressure vessel

KW - steels

KW - fracture toughness

KW - master curve

KW - inhomogeneous material

KW - random inhomogeneity

KW - maximum likelihood procedure

KW - SINTAP procedure

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DO - 10.1016/j.ijpvp.2006.04.005

M3 - Article

VL - 83

SP - 584

EP - 592

JO - International Journal of Pressure Vessels and Piping

JF - International Journal of Pressure Vessels and Piping

SN - 0308-0161

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ER -