Accession Number : ADA138052

Title :   Cyclic Deformation and Fatigue of Monocrystalline Ni-Base Superalloys.

Descriptive Note : Final rept. 1 May 82-1 Oct 83,

Corporate Author : PENNSYLVANIA UNIV PHILADELPHIA DEPT OF MATERIALS SCIENCE AND ENGINEERING

Personal Author(s) : Laird,C

PDF Url : ADA138052

Report Date : 16 Dec 1983

Pagination or Media Count : 18

Abstract : A report is provided of progress in studying cyclic deformation of precipitation-hardened alloy in a project supported by the army. This work concentrated on the stability of precipitates under cyclic deformation (Al-Ag, Al-Cu systems) and the strain-localization behavior of alloys containing shearable precipitates (Al-Cu, 0'') and non-shearable precipitates (Al-Cu, 0'). Furthermore, the relationship of cyclic response in such simple systems to that of commercial alloy was also studied. The main results are reported.

Descriptors :   *Superalloys, *Nickel alloys, *Nickel alloy inconel, *Aluminum alloys, *Single crystals, *Fatigue(Mechanics), *Deformation, Mechanical properties, Hardening, Cycles, Dislocations, Stress strain relations, Stability, Shear properties, Room temperature, Crack propagation, Plastic deformation, Structural analysis

Subject Categories : Metallurgy and Metallography
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE