Accession Number:

AD0271480

Title:

Effect of Creep-Exposure on Mechanical Properties of Rene' 41. Part I.

Descriptive Note:

Rept. for 1 Apr 59-31 Mar 60 on Materials Application,

Corporate Author:

MICHIGAN UNIV ANN ARBOR

Personal Author(s):

• GLUCK,JEREMY V.
• FREEMAN,JAMES W.

Report Date:

1961-08-01

Pagination or Media Count:

1.0

Abstract:

Identifiers Izod impact test, Ductility.An investigation of the influence of creep-exposure on the mechanical properties at room temperature of Rene 41 alloy is in progress. The objestives are to delineate the conditions causing changes in these properties and to develop general principles for predicting the influence of creep on such properties of Ni base superalloys. The results for exposures at 1200 to 1800 F and for 10 to 200 hr show that thermally-induced structural changes reduce room temperature strength and ductility when the exposure temperatures are 1500 F or higher. Limited data indicate that surface reactions also reduce properties with the temperature range of the effect extending to lower temperatures than 1500 F. Author

Descriptors:

• *COBALT ALLOYS
• *NICKEL ALLOYS
• ALLOYS
• ALUMINUM ALLOYS
• CARBIDES
• CHROMIUM ALLOYS
• CREEP
• CRYSTAL STRUCTURE
• DEFORMATION
• ELECTRON MICROSCOPY
• EXTENSOMETERS
• GRAIN STRUCTURES(METALLURGY)
• HARDENING
• HEATING
• HIGH TEMPERATURE
• IMPACT SHOCK
• LOAD DISTRIBUTION
• MECHANICAL PROPERTIES
• MICROSCOPY
• MICROSTRUCTURE
• MOLYBDENUM ALLOYS
• PHASE STUDIES
• RUPTURE
• STRAIN GAGES
• TEMPERATURE
• TEST EQUIPMENT
• THERMAL STRESSES
• TIME
• TITANIUM ALLOYS
• X RAY DIFFRACTION

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE