Accession Number : ADA260709


Title :   Fatigue In Single Crystal Nickel Superalloys Technical Progress Report


Descriptive Note : Progress rept. for 16 Dec 1992-15 Jan 1993


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


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


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a260709.pdf


Report Date : 15 Jan 1993


Pagination or Media Count : 6


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 subsequent 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 , AIRFOILS , GAS TURBINES , ISOTROPISM , ENGINES , CREEP , OXIDATION , FRACTURE(MECHANICS) , MATERIALS


Subject Categories : Aircraft
      Properties of Metals and Alloys
      Crystallography
      Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE