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Phase Identification by Selective Etching

  • George F. Vander Voort

Abstract

The Identification of phases or constituents in metals and alloys is a common metallographic problem. Metallographers can often predict which phases are likely to be present in a given alloy from a knowledge of its sample chemical composition, processing history, previously published information on its characteristics, or by reference to phase diagrams. Guided by such information, the metallographer examines the microstructure to identify the phases present. Even when one is possessed of such information, however, the task is often far from trivial, even for well-documented alloy systems. Only after the phases have been identified should a quantification of the amount and morphological characteristics of the phases be attempted.

Keywords

Phase Identification Sigma Phase Selective Etching Beta Phase Delta Ferrite 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Van Nostrand Reinhold Company Inc. 1986

Authors and Affiliations

  • George F. Vander Voort
    • 1
  1. 1.R&D LaboratoryCarpenter Technology Corp.USA

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