An experimental study of the effects of warm prestressing on the fracture strength of notched and fatigue-cracked bend bars of a Ni-Cr-Mo, low-alloy forging-grade steel was conducted. The steel was tested in four heat treatment conditions simulating four thickness fractions of a 23-1/2-in-thick forging. Three load-temperature paths were investigated: (1) preload-cool-fracture, (2) preload-cool-unload-fracture, (3) preload-unload-cool-fracture. The fracture strengths of the prestressed bars were compared with the fracture strengths of unprestressed bars. The benefits of prestressing for each load-temperature path decreased in the order listed, although prestressing was always beneficial. The benefits also decreased with decreasing fracture-test temperature relative to the 50-percent FATT.
Skip Nav Destination
Article navigation
November 1970
This article was originally published in
Journal of Engineering for Industry
Research Papers
Effect of Loading Sequence on Notch Strength of Warm Prestressed Alloy Steel
W. R. Andrews
W. R. Andrews
General Electric Company, Knolls Atomic Power Lab., Schenectady, N. Y.
Search for other works by this author on:
W. R. Andrews
General Electric Company, Knolls Atomic Power Lab., Schenectady, N. Y.
J. Eng. Ind. Nov 1970, 92(4): 785-791
Published Online: November 1, 1970
Article history
Received:
June 15, 1970
Online:
July 15, 2010
Citation
Andrews, W. R. (November 1, 1970). "Effect of Loading Sequence on Notch Strength of Warm Prestressed Alloy Steel." ASME. J. Eng. Ind. November 1970; 92(4): 785–791. https://doi.org/10.1115/1.3427847
Download citation file:
Get Email Alerts
Cited By
Related Articles
Dynamic Fracture Toughness and Charpy Transition Properties of a Service-Exposed 2.25Cr-1Mo Reheater Header Pipe
J. Eng. Mater. Technol (April,2003)
Cryogenic Tensile, Fatigue, and Fracture Parameters for a Solution-Annealed 18 Percent Nickel Maraging Steel
J. Eng. Mater. Technol (April,1978)
Factors Affecting the Notch Toughness of Carbon and Low-Alloy Steel Forgings for Pressure Vessel and Piping Applications
J. Eng. Mater. Technol (October,1978)
Critical Fracture Processes in Army Cannons: A Review
J. Pressure Vessel Technol (August,2003)
Related Proceedings Papers
Related Chapters
Introduction and Definitions
Handbook on Stiffness & Damping in Mechanical Design
Section III: Subsections NC and ND — Class 2 and 3 Components
Companion Guide to the ASME Boiler and Pressure Vessel Code, Volume 1, Fourth Edition
Applications of Elastic-Plastic Fracture Mechanics in Section XI, ASME Code Evaluations
Online Companion Guide to the ASME Boiler & Pressure Vessel Codes