Metallurgical Transactions A

, Volume 12, Issue 4, pp 669–681 | Cite as

Alloy solidification in systems containing a liquid miscibility gap

  • Richard N. Grugel
  • Angus Hella Well
Alloy Phases and Structure


Directional solidification methods have been used to examine the growth of fibrous, or tubular, composite samples in alloys close to the monotectic reaction: Liquid 1 Solid + Liquid 2. The binary systems Al-In, Cu-Pb and Cd-Ga have been examined and some use made of a transparent analogue, succinnonitrile-water. The solidification behavior appears to relate to the height of the miscibility gap in such systems and it is demonstrated how ternary additions which change this height (Sn to Al-In, Al to Cu-Pb) modify the microstructures dramatically. These structural changes are discussed with reference to the relative surface energies between two immiscible liquids and a third (solid) phase. The phase spacings and transitions in microstructure are discussed in terms of diffusion processes at the monotectic front.


Metallurgical Transaction Growth Front Monotectic Reaction Ternary Addition Monotectic Temperature 
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Copyright information

© American Society For Metals And The Metallurgical Society Of AIME 1981

Authors and Affiliations

  • Richard N. Grugel
  • Angus Hella Well
    • 1
  1. 1.Michigan Technological UniversityHoughton

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