Accession Number : ADA256095


Title :   Fatigue in Single Crystal Nickel Superalloys


Descriptive Note : Technical progress rept.


Corporate Author : PRATT AND WHITNEY WEST PALM BEACH FL GOVERNMENT ENGINES AND SPACE PROPULSION


Personal Author(s) : DeLuca, Daniel P ; Ann, Charles


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a256095.pdf


Report Date : Sep 1992


Pagination or Media Count : 9


Abstract : This program investigates the seemingly unusual behavior of single crystal airfoil materials. The fatigue initiation processes in single crystal (SC) materials are significantly more complicated and involved than fatigue initiation and subsequently behavior of a (single) macrocrack in conventional, isotropic, materials. To understand these differences is the major goal of this project.


Descriptors :   *SINGLE CRYSTALS , *FATIGUE , *SUPERALLOYS , *NICKEL , THERMAL PROPERTIES , MECHANICAL PROPERTIES , AIRFOILS , GAS TURBINES , BEHAVIOR , CREEP , ENGINES , ANISOTROPY , FRACTURE(MECHANICS) , CRYSTALS , MATERIALS


Subject Categories : Properties of Metals and Alloys
      Crystallography
      Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE