Accession Number:

AD0602412

Title:

METALLURGICAL CHARACTERISTICS OF HIGH STRENGTH STRUCTURAL MATERIALS.

Descriptive Note:

Quarterly rept. no. 4, Feb-Apr 64,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Report Date:

1964-06-01

Pagination or Media Count:

80.0

Abstract:

A progress report covering research studies in highstrength hull structural materials, conducted in the period February 1964 to April 1964, is presented. These studies included the development of preliminary relationships of flaw size and stress for fracture of quenched and tempered steels, maraging steels, and titanium. Preliminary information was developed on the relationships of fracture toughness tests for aluminum. Heat-treatment studies for titanium alloys indicated improvements in fracture toughness for specific levels of yield strength. Evidence that low-cycle fatigue crack growth in a strain-controlled process is presented for specially rolled and heat treated HY-80 steels. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE