An experimental method for determining mechanical properties in the non-equilibrium mushy zones of alloys

Q. Han, M. I. Hassan, S. Viswanathan, K. Saito, S. K. Das

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The mushy zone of an alloy is in non-equilibrium during solidification. The mechanical properties of alloys in this non-equilibrium mushy zone, especially at small liquid fractions, are closely related to the formation of hot tears during the solidification of castings. It is difficult to measure the mechanical properties in the non-equilibrium mushy zones of alloys at a small liquid fraction as the liquid fraction decreases rapidly during heating and during the isothermal hold needed to measure mechanical properties, due to back diffusion in the solid. This paper describes a new experimental method for determining mechanical properties in the non-equilibrium mushy zones of alloys. Initial results indicate that the method is better than traditional methods in capturing the brittle nature of alloys at temperatures close to the non-equilibrium solidus temperature.

Original languageBritish English
Title of host publicationSolidification of Aluminum Alloys
EditorsM.G. Chu, D.A. Granger, Q. Han
Pages211-220
Number of pages10
StatePublished - 2004
EventSolidification of Aluminum Alloys - Charlotte, NC., United States
Duration: 14 Mar 200418 Mar 2004

Publication series

NameSolidification of Aluminum Alloys

Conference

ConferenceSolidification of Aluminum Alloys
Country/TerritoryUnited States
CityCharlotte, NC.
Period14/03/0418/03/04

Keywords

  • Aluminum alloys
  • Hot tearing
  • Mechanical properties
  • Mushy zone

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