Accession Number : ADA954804

Title :   Torsion Pre-Strain and the Fatigue Life of RC-55 Titanium Alloy,

Descriptive Note : Interim rept.,

Corporate Author : CARNEGIE INST OF TECH PITTSBURGH PA DEPT OF CIVIL ENGINEERING

Personal Author(s) : Kaufman,J. G. ; d'Appolonia,E.

Report Date : JUL 1954

Pagination or Media Count : 64

Abstract : The effect of torsional pre-strain on the behavior of RC-55 titanium alloy has been studied with rotating beam fatigue tests. Torsional pre-strain ranged from 5 to 60 per cent of the torsional strain to failure. Rotating beam specimens were then machined from the twisted alloy and fatigue-tested at 10,000 rpm and room temperature (70 degrees Fahrenheit). Data from tests of torsionally pre-strained specimens were compared with data from tests of otherwise similar specimens that had not been pre-strained.

Descriptors :   *TITANIUM ALLOYS, *FATIGUE LIFE, BEAMS(STRUCTURAL), FAILURE, FATIGUE TESTS(MECHANICS), ROOM TEMPERATURE, STRAIN(MECHANICS), TORSION

Subject Categories : Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE