Accession Number : ADA131759

Title :   Application of Rapidly Solidified Superalloys.

Descriptive Note : Quarterly rept. 1 Aug-31 Oct 77,

Corporate Author : PRATT AND WHITNEY AIRCRAFT GROUP WEST PALM BEACH FL

Personal Author(s) : Cox,A R

PDF Url : ADA131759

Report Date : Nov 1977

Pagination or Media Count : 22

Abstract : This program is being conducted for the purpose of applying the principle of rapid solidation to superalloy powders and subsequent development of a stronger alloy composition for jet engine turbine airfoils. Centrifugal atomization and forced convective cooling are being used to produce the fast-cooled material. During this report period, heat treat studies to produce aligned grain structures, thermal stability evaluation, and initial mechanical property tests were run for 4 classes of experimental alloys. Results showed that 3 classes of alloys heat treated effectively and one of the alloys achieved levels of creep rupture strength commensurate with program goals. (Author)

Descriptors :   *Superalloys, *Powder metallurgy, *Solidification, *Quick reaction, Airfoils, Turbines, Jet engines, Centrifugal force, Atomization, Convection(Heat transfer), Cooling, Extrusion, Forging, Mechanical properties, Creep strength, Thermal stability, Grain structures(Metallurgy), Laser beams, Melting, Particle size, Rupture, Failure(Mechanics)

Subject Categories : Metallurgy and Metallography
      Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE