Ductile fracture toughness of modified A 302 grade B plate materials. Volume 2

McCabe, D E; Manneschmidt, E T; Swain, R L

doi:10.2172/453788

Title: Ductile fracture toughness of modified A 302 grade B plate materials. Volume 2

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Abstract

The objective of this work was to develop ductile fracture toughness data in the form of J-R curves for modified A 302 grade B plate materials typical of those used in fabricating reactor pressure vessels. A previous experimental study at Materials Engineering Associates (MEA) on one particular heat of A 302 grade B plate showed decreasing J-R curves with increased specimen thickness. This characteristic has not been observed in numerous tests made on the more recent production materials of A 533 grade B and A 508 class 2 pressure vessel steels. It was unknown if the departure from norm for the MEA material was a generic characteristic for all heats of A 302 grade B steels or just unique to that one particular plate. Seven heats of modified A 302 grade B steel and one heat of vintage A 533 grade B steel were provided to this project by the General Electric Company of San Jose, California. All plates were tested for chemical content, tensile properties, Charpy transition temperature curves, drop-weight nil-ductility transition (NDT) temperature, and J-R curves. Tensile tests were made in the three principal orientations and at four temperatures, ranging from room temperature to 550{degrees}F (288{degrees}C). Charpy V-notchmore »« less

Authors:: McCabe, D E; Manneschmidt, E T; Swain, R L

Publication Date:: Sat Feb 01 00:00:00 EST 1997

Research Org.:: US Nuclear Regulatory Commission (NRC), Washington, DC (United States). Div. of Engineering Technology; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: Nuclear Regulatory Commission, Washington, DC (United States)

OSTI Identifier:: 453788

Report Number(s):: NUREG/CR-6426-Vol.2; ORNL-6892/V2
ON: TI97003758; TRN: 97:006784

DOE Contract Number:: AC05-96OR22464

Resource Type:: Technical Report

Resource Relation:: Other Information: PBD: Feb 1997

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; STEEL-ASTM-A302; FRACTURE PROPERTIES; DUCTILE-BRITTLE TRANSITIONS; STEEL-ASTM-A533-B; PRESSURE VESSELS; MATERIALS TESTING; COMPILED DATA

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                    McCabe, D E, Manneschmidt, E T, and Swain, R L. Ductile fracture toughness of modified A 302 grade B plate materials. Volume 2.  United States: N. p., 1997. 
        Web.  doi:10.2172/453788.

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                    McCabe, D E, Manneschmidt, E T, & Swain, R L. Ductile fracture toughness of modified A 302 grade B plate materials. Volume 2.  United States.  https://doi.org/10.2172/453788

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                    McCabe, D E, Manneschmidt, E T, and Swain, R L. 1997.  
        "Ductile fracture toughness of modified A 302 grade B plate materials. Volume 2".  United States.  https://doi.org/10.2172/453788.  https://www.osti.gov/servlets/purl/453788.

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@article{osti_453788,

  title        = {Ductile fracture toughness of modified A 302 grade B plate materials. Volume 2},

  author       = {McCabe, D E and Manneschmidt, E T and Swain, R L},

  abstractNote = {The objective of this work was to develop ductile fracture toughness data in the form of J-R curves for modified A 302 grade B plate materials typical of those used in fabricating reactor pressure vessels. A previous experimental study at Materials Engineering Associates (MEA) on one particular heat of A 302 grade B plate showed decreasing J-R curves with increased specimen thickness. This characteristic has not been observed in numerous tests made on the more recent production materials of A 533 grade B and A 508 class 2 pressure vessel steels. It was unknown if the departure from norm for the MEA material was a generic characteristic for all heats of A 302 grade B steels or just unique to that one particular plate. Seven heats of modified A 302 grade B steel and one heat of vintage A 533 grade B steel were provided to this project by the General Electric Company of San Jose, California. All plates were tested for chemical content, tensile properties, Charpy transition temperature curves, drop-weight nil-ductility transition (NDT) temperature, and J-R curves. Tensile tests were made in the three principal orientations and at four temperatures, ranging from room temperature to 550{degrees}F (288{degrees}C). Charpy V-notch transition temperature curves were obtained in longitudinal, transverse, and short transverse orientations. J-R curves were made using four specimen sizes (1/2T, IT, 2T, and 4T). None of the seven heats of modified A 302 grade showed size effects of any consequence on the J-R curve behavior. Crack orientation effects were present, but none were severe enough to be reported as atypical. A test temperature increase from 180 to 550{degrees}F (82 to 288{degrees}C) produced the usual loss in J-R curve fracture toughness. Generic J-R curves and mathematical curve fits to the same were generated to represent each heat of material. This volume is a compilation of all data developed.},

  doi          = {10.2172/453788},

  url          = {https://www.osti.gov/biblio/453788},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sat Feb 01 00:00:00 EST 1997},

  month        = {Sat Feb 01 00:00:00 EST 1997}

}

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