NDLI: Evaluation of directionally solidified eutectic superalloys for turbine blade applications

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Evaluation of directionally solidified eutectic superalloys for turbine blade applications

Content Provider	NASA Technical Reports Server (NTRS)
Author	Jackson, M. R. Henry, M. E. Walter, J. L.
Copyright Year	1978
Description	Alloys from the following systems were selected for property evaluation: (1) gamma/gamma-Mo (Ni-base, rods of Mo); (2) gamma-beta (Ni-base, lamellae or rods of (Ni, Fe/Co Al); and (3) gamma-gamma (Ni-base rods of Ni3Al gamma). The three alloys were subjected to longitudinal and transverse tensile and rupture tests from 750 C to 1100 C, longitudinal shear strength was measured at several temperatures, resistance to thermal cycling to 1150 C was determined, cyclic oxidation resistance was evaluated at 750 C and 1100 C, and each system was directionally solidified in an alumina shell mold turbine shape to evaluate mold/metal reactivity. The gamma/gamma Mo system has good rupture resistance, transverse properties and processability, and is a high potential system for turbine blades. The gamma-beta system has good physical properties and oxidation resistance, and is a potential system for turbine vanes. The gamma-gamma system has good high temperature rupture resistance and requires further exploratory research.
File Size	10279566
Page Count	106
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19790008777
Archival Resource Key	ark:/13960/t2f815805
Language	English
Publisher Date	1978-04-01
Access Restriction	Open
Subject Keyword	Metallic Materials Oxidation Resistance Turbine Blades Directional Solidification Crystals Nickel Alloys Heat Resistant Alloys High Temperature Tests Mechanical Properties Eutectic Alloys Thermodynamic Properties Cobalt Alloys Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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