Notch Sensitivity of Aluminum Alloy Sheet and Plate at -320°F Based Upon Notch-Yield Ratio
To assist in making the wisest choice of materials for cryogenic applications where fracture toughness is important, a number of investigators have been using tensile tests of smooth and notched specimens to evaluate the notch sensitivity of materials at subzero temperatures[1–6]. There has been little agreement among the investigators as to the design of notch which leads to the most effective comparison of materials although specific choices have been made by some groups.
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- 2.M. P. Hanson, G. W. Stickley, and H. T. Richards, “Sharp-Notch Behavior of Some High-Strength Sheet Aluminum Alloys and Welded Joints at 75°, -320°, and -423°F,” Symposium on Low Temperature Properties of High-Strength Aircraft and Missile Materials, ASTM Spec. Tech. Pub. 287 (1960).Google Scholar
- 5.A. Hurlick and J. F. Watson, Metal Progress, Vol. 79 (April, 1961).Google Scholar
- 6.J. H. Belton, L. W. Godby, and B. L. Taft, “Materials for Use at Liquid Hydrogen Temperatures,” Symposium on Low Temperature Properties of High-Strength Aircraft and Missile Materials, ASTM (June, 1960).Google Scholar
- 7.J. G. Kaufman and E. W. Johnson “The Use of Notch-Yield Ratio to Evaluate Notch Sensitivity,” presented at the 1962 Annual Meeting of ASTM (June, 1962).Google Scholar