Journal of Materials Science

, Volume 30, Issue 11, pp 2901–2910 | Cite as

Metastable liquid phase separation in tungsten inert gas and electron beam copper/stainless-steel welds

  • A. Munitz


The microstructure of Tungsten Inert Gas (TIG) and electron beam copper/stainless-steel welds were investigated using scanning electron microscopy. The relatively high cooling rates entailed in the welding result in high bulk supercooling, causing two microstructural effects: (i) melt separation into two liquids, iron-rich L1, and copper-poor L2, while each solidifies by a path dictated by the stable phase boundary; (ii) enhanced solute trapping of Cu in the α-Fe phase, and Fe in the ɛ-Cu phase.


Scanning Electron Microscopy Welding Electron Beam Cool Rate Phase Separation 
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Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • A. Munitz
    • 1
  1. 1.Nuclear Research Center-NegevBeer-ShevaIsrael

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