CENTRIFUGAL CREEP TEST MACHINE EVALUATION PROGRAM. Final Report

Technical Report · Thu Dec 01 04:00:00 EST 1960

OSTI ID:4005518

A centrifugal creep test machine was evaluated for inpile creep use. A large number of specimens (24) can be tested simultaneously in a small physical space at temperatures up to 2000 deg F and stress levels up to 50,000 psi. Data can be taken without stopping the test. Centrifugal cantilever bend tests for material screening purposes were conducted on Hastelloy and Inconel materials in a nitrogen atmosphere at 1750 deg F. Activation energies for creep were obtained from cantilever bend tests on pure aluminum. The same creep laws as in conventional creep-tension were found to apply to creep bending. A centrifugal creep-tension test head was built, and tests were carried out on pure aluminum for comparison with conventional tensile creep and with cantilever bending creep. Cantilever bend specimen profiles were found to be stress dependent. A suggestion is made for testing uniformly bending specimens; their creep is directly interpreted in terms of conventional creep parameters. (auth)

• Research Organization: Aerojet-General Nucleonics, San Ramon, Calif.
• NSA Number: NSA-15-026338
• OSTI ID: 4005518
• Report Number(s): AGN-8024
• Country of Publication: United States
• Language: English

Related Subjects

ALUMINUM
ALUMINUM ALLOYS
CENTRIFUGATION
CHROMIUM ALLOYS
CREEP
ENGINEERING AND EQUIPMENT
HASTELLOY
INCONEL ALLOYS
MATERIALS TESTING
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NIOBIUM ALLOYS
NITROGEN
STANDARDS
STRESSES
TEMPERATURE
TENSILE PROPERTIES
TESTING
TITANIUM ALLOYS