Rafting and elastoplastic deformation of superalloys studied by neutron diffraction

  title={Rafting and elastoplastic deformation of superalloys studied by neutron diffraction},
  author={James Coakleya and Eric A. Lassc and Dong Mad and Matthew Froste and David N. Seidmana and David C. Dunanda and Howard J. Stoneb},
  • James Coakleya, Eric A. Lassc, +4 authors Howard J. Stoneb
  • Published 2017
The rafting of monocrystalline Niand Co-based superalloys has been studied by neutron diffractometry. Lattice parameter misfit values and the difference in phase stiffnesses at room temperature, 650 ◦C, and 900 ◦C are presented. These microstructural parameters should assist in refining computer models that aim to predict precipitate evolution in superalloys and aid future alloy design. The nature of rafting is shown experimentally to be dependent upon the lattice parameter misfit. The 900 ◦C… CONTINUE READING


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