METALLURGICAL CHARACTERISTICS OF HIGH STRENGTH STRUCTURAL MATERIALS
Abstract
A progress report covering research studies in high strength hull structural materials, conducted in the period May 1964 to August 1964, is presented. These studies include the development of preliminary relationships of flaw size and stress for fracture of quenched and tempered steels, maraging steels, titanium, and aluminum. Preliminary information has also been developed in the relationship between the notch tensile test and the drop-weight tear test for aluminum alloys. The effects of corrosion environments on the crack rate propagation in HY-80 to HY-150 quenched and tempered steels have been examined under low cycle fatigue conditions. Preliminary results on a study of the directionality effects due to cross-rolling on the fracture toughness of quenched and tempered steels are presented. The fracture toughness properties of specially processed Ti-7Al-2Cb-1Ta, diffusion-bonded Ti-6Al-4V, forged Ti- 5Al-2.5Sn, and titanium weldments are reported.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1964
- Accession Number
- AD0608940
Entities
People
- C. N. Freed
- D. G. Howe
- E. A. Lange
- K. B. Lloyd
- P. P. Puzak
- R. E. Morey
- R. W. Huber
- R. W. Judy
- Robert J. Goode
- Thomas W. Crooker
Organizations
- United States Naval Research Laboratory