Accession Number : ADA266116


Title :   Fatigue in Single Crystal Nickel Superalloys


Descriptive Note : Technical progress rept. 16 Mar-15 Apr 1993


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


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


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a266116.pdf


Report Date : 15 Apr 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(MECHANICS) , *SUPERALLOYS , *NICKEL , THERMOMECHANICS , CRYSTAL STRUCTURE , FRACTURE(MECHANICS) , ANISOTROPY , TURBINES , CREEP , OXIDATION , AIRFOILS , CRACKS


Subject Categories : Aircraft
      Properties of Metals and Alloys
      Crystallography
      Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE