Metallurgical Transactions A

, Volume 20, Issue 10, pp 2109–2115 | Cite as

The evolution of microstructure in the undercooled Zn-Sn entrained droplets

  • K. Chattopadhyay
  • P. R. Swarnamba
  • J. P. N. Srivastava
Solidification

Abstract

The existence of a metastable miscibility gap has been indicated from the metastable phase diagram of the Zn-Sn system calculated using regular solution and Krupkowski's models. To validate this phenomenon experimentally, the entrained droplet technique was used to achieve high undercooling and to access the metastable regions. The microstructural analysis confirms the miscibility gap and the associated monotectic reaction. Evidence is also presented for a possible massive solidification of the undercooled melt.

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Copyright information

© The Minerals, Metals & Materials Society and ASM International 1989

Authors and Affiliations

  • K. Chattopadhyay
    • 1
  • P. R. Swarnamba
    • 1
  • J. P. N. Srivastava
    • 2
  1. 1.Department of MetallurgyIndian Institute of ScienceBangaloreIndia
  2. 2.Mishra Dhatu Nigam ParishadHyderabadIndia

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