An Electron Microscope Study of the Featureless Zone Obtained during Rapid Solidification View Full Text


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Article Info

DATE

1984-01

AUTHORS

J. M. Brown, J. A. Sekhar

ABSTRACT

The microstructure observed on the rapid solidification of dilute alloys of Cu in Al has been examined. A high intensity heat source, namely, a 6 kW CO2 laser beam was passed over the surface of the alloy, and on regrowth a featureless zone is seen prior to a cellular morphology. Scanning transmission electron microscopy in conjunction with X-ray microanalysis was used to show that a concentration gradient exists across this region. The results support the theory that it is a plane front zone formed during the resolidification process. More... »

PAGES

29-31

References to SciGraph publications

  • 1980-12. Epitaxy and surface melting of aluminum alloys by high powered directed energy in METALLURGICAL AND MATERIALS TRANSACTIONS B
  • 1981-03. Rapid melting and solidification of a surface due to a moving heat flux in METALLURGICAL AND MATERIALS TRANSACTIONS B
  • 1979-05. Solidification of a laser melted nickel-base superalloy in METALLURGICAL AND MATERIALS TRANSACTIONS A
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/bf02644384

    DOI

    http://dx.doi.org/10.1007/bf02644384

    DIMENSIONS

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