Fracture Toughness of High Strength Steel Predicted from Charpy Energy or Reduction in Area

JH Underwood; GS Leger

doi:10.1520/STP32570S

SYMPOSIA PAPER Published: 01 January 1984

STP32570S

Fracture Toughness of High Strength Steel Predicted from Charpy Energy or Reduction in Area

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Analysis is presented of the results of an extensive mechanical and fracture test program. Ninety-six hollow cylinder forgings of A723 steel with five different manufacturing processes were tested at two locations with different outer diameters. Yield strength, plane-strain fracture toughness, Charpy impact energy, and tensile reduction in area were measured and analyzed for statistical variation and difference of mean value. Linear regression was used to fit lines to the data and to determine correlation coefficients. Conclusions were drawn as to the suitability of Charpy energy and reduction in area as predictors of plane-strain fracture toughness.

Author Information

Underwood, JH

U.S. Army Armament Research & Development Center, Watervliet, N.Y.

Leger, GS

U.S. Army Armament Research & Development Center, Watervliet, N.Y.

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Details

Developed by Committee: E08

Pages: 481–498

DOI: 10.1520/STP32570S

ISBN-EB: 978-0-8031-4900-7

ISBN-13: 978-0-8031-0208-8

Fracture Toughness of High Strength Steel Predicted from Charpy Energy or Reduction in Area

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