Martensitic Transformation in a Splat Cooled Metastable Au-47.5 at. % Cd Alloy.

Abstract

The effects of liquid quenching on the martensitic transformation of an Au-47.5 at. % Cd alloy are studied. A metastable beta phase is retained at room temperature after splat quenching. The electron diffraction pattern of this metastable phase shows diffuse (112) streaking. The x-ray supperlattice to fundamental line intensities are somewhat larger than the corresponding ratio for the bulk slow cooled samples (approximately 69C.). A reversible martensitic transformation can be induced in this metastable phase by increasing the beam intensity during the transmission electron microscopy. Extremely fine details of the martensitic plate nucleation and propagation during such a transformation cycle were recorded. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1970
Accession Number
AD0716043

Entities

People

  • K Mukherjee
  • Paul Ferraglio

Tags

DTIC Thesaurus Topics

  • Beta Testing
  • Diffraction
  • Electron Diffraction
  • Electron Microscopy
  • Electrons
  • Intensity
  • Microscopy
  • Nucleation
  • Optical Analysis
  • Quenching
  • Reversible
  • Transmission Electron Microscopy
  • X Rays

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Materials Science and Engineering.
  • Nanocomposite Materials Science

Technology Areas

  • Microelectronics