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Dendrite Spacings in Directionally Solidified Superalloy PWA-1480

  • M. Vijayakumar
  • , James E. Lee
  • , P. A. Curreri
  • Cleveland State University
  • NASA Marshall Space Flight Center

Research output: Contribution to journal › Article › peer-review

Abstract

Primary dendrite spacings and side-branch coarsening kinetics were examined in specimens of the single-crystal multicomponent commercial superalloy PWA - 1480 , which were directionally solidified in a positive thermal gradient. The experimentally observed dependence of primary dendrite spacings and side-branch coarsening kinetics on growth rate and thermal gradient were in agreement with the behavior predicted by analytical models developed for binary alloys.

Original languageAmerican English
JournalMaterials Science and Engineering A
Volume132
DOIs
StatePublished - Feb 1 1991
Externally publishedYes

Disciplines

  • Materials Science and Engineering
  • Thermodynamics

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