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Download or read book Ductile Fracture Toughness Of Modified A 302 Grade B Plate Materials ... Nureg/CR-6426 ORNL-6892/V2 Vol. 2 ... U.S. Nuclear Regulatory Comm ... February 1997 written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ductile Fracture Toughness Of Modified A 302 Grade B Plate Materials, Data Analysis ... Nureg/CR-6426 ORNL-6892 Vol. 1 U S Nuclear Reg. Comm ... January, 1997 written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 667 pages
Book Rating : 4.:/5 (16 download)
Download or read book Ductile Fracture Toughness of Modified A 302 Grade B Plate Materials written by and published by . This book was released on 1997 with total page 667 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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°F (288°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°F (82 to 288°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.
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ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (16 download)
Download or read book Ductile Fracture Toughness of Modified A 302 Grade B Plate Materials, Data Analysis written by and published by . This book was released on 1997 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this work was to develop ductile fracture toughness data in the form of J-R curves for modified A302 grade B plate materials typical of those used in reactor pressure vessels. A previous experimental study on one heat of A302 grade B plate showed decreasing J-R curves with increased specimen thickness. This characteristic has not been observed in tests made on recent production materials of A533 grade B and A508 class 2 pressure vessel steels. It was unknown if the departure from norm for the material was a generic characteristic for all heats of A302 grade B steels or unique to that particular plate. Seven heats of modified A302 grade B steel and one heat of vintage A533 grade B steel 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 550F. 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, 1T, 2T, and 4T). The fracture mechanics-based evaluation method covered three test orientations and three test temperatures (80, 400, and 550F). However, the coverage of these variables was contingent upon the amount of material provided. Drop-weight NDT temperature was determined for the T-L orientation only. None of the heats of modified A302 grade B 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 550F produced the usual loss in J-R curve fracture toughness. Generic J-R curves and curve fits were generated to represent each heat of material. This volume deals with the evaluation of data and the discussion of technical findings. 8 refs., 18 figs., 8 tabs.
Author : D. E. McCabe
Publisher :
ISBN 13 : 9780160628061
Total Pages : 90 pages
Book Rating : 4.6/5 (28 download)
Download or read book Ductile Fracture Toughness of Modified A 302 Grade B Plate Materials written by D. E. McCabe and published by . This book was released on 1997-02-01 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : D. E. McCabe
Publisher :
ISBN 13 : 9780160628184
Total Pages : 648 pages
Book Rating : 4.6/5 (281 download)
Download or read book Ductile Fracture Toughness of Modified A 302 Grade B Plate Materials written by D. E. McCabe and published by . This book was released on 1997-03-01 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. T Corten
Publisher :
ISBN 13 : 9780803155299
Total Pages : pages
Book Rating : 4.1/5 (552 download)
Download or read book Fracture Toughness written by H. T Corten and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamic Fracture Initiation Toughness Of ASTM A533, Grade B Steel Plate... NUREG/CR-6512... U.S. Nuclear Regulatory Commission written by and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 55 pages
Book Rating : 4.:/5 (873 download)
Download or read book Dynamic Fracture Initiation Toughness of ASTM A533, Grade B Steel Plate written by and published by . This book was released on 1999 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dynamic fracture toughness of an ASTM A533, Grade B steel plate was determined at several temperatures in the ductile-brittle transition region. Crack-tip loading rates ranged from approximately 10(sup3) to 10(sup5) MPa m/s. The fracture toughness was shown to decrease with increased loading rate. The dynamic fracture toughness was compared with results from previous investigations, and it was shown that the decrease in toughness due to increased loading rate at the highest test temperature was not as severe as reported in previous investigations. It was also shown that the reference temperature. T(sub0) was better index of the fracture toughness vs. temperature relationship than the nil-ductility temperature, RT(subNDT), for this material.
