Accession Number : AD0647884

Title :   NOTCHED PROPERTIES OF HIGH-STRENGTH ALLOYS AT VARIOUS LOAD RATES AND TEMPERATURES.

Descriptive Note : Technical rept.,

Corporate Author : ARMY MATERIALS RESEARCH AGENCY WATERTOWN MASS

Personal Author(s) : Iannelli,Armando A. ; Rizzitano,F. J.

Report Date : JUL 1966

Pagination or Media Count : 25

Abstract : Tests were conducted to determine the notched and unnotched strengths of aluminum alloys 7001-T6 and 7075-T6, titanium alloy 6Al-6V-2Sn, uranium alloy 8Mo-0.5Ti, Rocoloy steels and 18% Ni maraging steel at load durations of 10 milliseconds to 5 minutes, and at temperatures from -320 F to +500 F. At room temperatures, as load duration was increased from 10 milliseconds to 5 minutes, the notched and unnotched tensile strengths of these materials were maintained within 10 percent, except that they increased approximately 30 percent for the notched aluminum alloys, and decreased 30% for the unnotched uranium alloy. The notched strength of Rocoloy steel is less than its unnotched strength over the entire test temperature range. Notched strengths of all the other alloys tested are less than their unnotched strengths in the lower test temperature range but exceed the unnotched strengths in the higher temperature range. (Author)

Descriptors :   (*ALUMINUM ALLOYS, TENSILE PROPERTIES), (*TITANIUM ALLOYS, TENSILE PROPERTIES), (*URANIUM ALLOYS, TENSILE PROPERTIES), (*STEEL, TENSILE PROPERTIES), MARAGING STEELS, VANADIUM ALLOYS, TIN ALLOYS, NICKEL ALLOYS, MOLYBDENUM ALLOYS, COBALT ALLOYS, NOTCH SENSITIVITY, LOADS(FORCES)

Subject Categories : Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE