Metallurgical and Materials Transactions A

, Volume 44, Issue 5, pp 1994–1997

Local Atomic Structure of a High-Entropy Alloy: An X-Ray and Neutron Scattering Study

Authors

  • Wei Guo
    • Department of Materials Science and EngineeringUniversity of Tennessee
  • Wojciech Dmowski
    • Department of Materials Science and EngineeringUniversity of Tennessee
  • Ji-Yong Noh
    • Department of Materials Science and EngineeringUniversity of Tennessee
  • Philip Rack
    • Department of Materials Science and EngineeringUniversity of Tennessee
    • Department of Materials Science and EngineeringUniversity of Tennessee
  • Takeshi Egami
    • Joint Institute for Neutron Sciences, Department of Materials Science and EngineeringUniversity of Tennessee
    • Department of Physics and AstronomyUniversity of Tennessee
    • Oak Ridge National Laboratory
Symposium: Bulk Metallic Glasses IX

DOI: 10.1007/s11661-012-1474-0

Cite this article as:
Guo, W., Dmowski, W., Noh, J. et al. Metall and Mat Trans A (2013) 44: 1994. doi:10.1007/s11661-012-1474-0

Abstract

By using high-energy synchrotron X-ray and neutron scattering, the local structure of a ternary high-entropy alloy Zr1/3Nb1/3Hf1/3 is characterized by means of pair distribution function (PDF) analysis. Results show that this alloy is a body center cubic (b.c.c.) phase in both bulk sample and in a thin film ~1.5 µm thick. The PDFs obtained from X-ray diffraction and neutron diffraction agree well with each other. The measured PDFs differ from the calculated PDF, particularly in the peak shape of the first two peaks, indicating local lattice distortion due to different atomic sizes in the solid solution.

Copyright information

© The Minerals, Metals & Materials Society and ASM International 2012