Senior technologist, Applied Research Laboratory, U.S. Steel Corp., Monroeville, Pa.
Pages: 11 Published: Jan 1965
In the past five years, fracture mechanics has been used as a basis for the evaluation of the fracture toughness of high-strength steels and other high-strength alloys. Some of the considerations involved in the selection of plane-strain fracture toughness as the most appropriate and significant parameter for ultrahigh-strength alloy steel development are discussed in this paper.
The contribution of fracture mechanics to steel research and development is illustrated by brief reviews of three investigations: (1) a study of the relationships between microstructure and toughness in quenched and tempered low-alloy ultrahigh-strength steels, (2) an investigation of the effect of sulfur level on the fracture toughness of AISI 4345 alloy steel, and (3) a study of the influence of banding on fracture toughness anisotropy in a maraging steel.
Paper ID: STP26594S