The mechanical properties of four cast high-strength steels, 4340, 15-5 PII stainless steel, and two maraging steels were examined. To provide a direct comparison with wrought steels split heats were prepared in which part of each heat was sand cast and the balance was forged and hot-rolled to plate. The KIc properties of the castings were comparable to the plate properties. Limited tests indicated that the cast steels also had reasonably good fatigue and stress corrosion cracking resistance. The castings showed surprisingly low Charpy values, which was attributed to notch acuity due to the more heterogeneous nature of the fractures in the cast structures. The overall results suggest that cast high-strength steels had satisfactory toughness and could be used in many applications.
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January 1977
Research Papers
The Fracture Toughness of Cast High-Strength Steels
S. Floreen
S. Floreen
The International Nickel Company, Inc., Paul D. Merica Research Laboratory, Sterling Forest, Suffern, N. Y.
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S. Floreen
The International Nickel Company, Inc., Paul D. Merica Research Laboratory, Sterling Forest, Suffern, N. Y.
J. Eng. Mater. Technol. Jan 1977, 99(1): 70-75 (6 pages)
Published Online: January 1, 1977
Article history
Received:
March 10, 1976
Revised:
July 9, 1976
Online:
August 17, 2010
Citation
Floreen, S. (January 1, 1977). "The Fracture Toughness of Cast High-Strength Steels." ASME. J. Eng. Mater. Technol. January 1977; 99(1): 70–75. https://doi.org/10.1115/1.3443409
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