Fracture Toughness of Several High Strength Steels
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The yield strength range for steels from 180 to 210 ksi is currently covered by four weldable alloys of the following nominal chemical analysis: 18%Ni-8%Co-3%Mo
The Memorandum discusses the current situation on the inclusion of fracture-toughness testing requirements in specifications for high-strength steels used for m
The objective of the present investigation was to establish, in high yield strength steels, relationships between microstructure, fracture toughness and fatigue