Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
To appear in Selected Works of Mats Hillert Edited by J. Agren et al.(2005) Introduction to "A Treatment of the Solute Drag on Moving Grain Boundaries and Phase
 

Summary: To appear in Selected Works of Mats Hillert Edited by J. Agren et al.(2005)
Introduction to "A Treatment of the Solute Drag on Moving Grain Boundaries and Phase
Interfaces in Binary Alloys", by M. Hillert and B. Sundman
Michael J. Aziz
Division of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138
Hillert and Sundman1
proposed a general model for solute drag on moving grain and interphase
boundaries that, along with their subsequent solidification model2
, set the stage for work that
followed and gave us a unified picture of the solute drag phenomenon. It followed theoretical
treatments of dilute solute drag on grain boundary migration3,4
, and developed in parallel with
theoretical treatments of solute drag focused specifically on diffuse, coherent interfaces5,6
.
Hillert and Sundman presented a general expression, applicable to a diffuse interface in a binary
alloy comprised of solvent ("A") and solute ("B"), for the force PB that the solute exerts upon a
unit area of interface for an arbitrary profile of solute adsorption free energy. In one of its
equivalent forms they wrote it as
( ) ( ) ( )( )1
B B B A

  

Source: Aziz, Michael J.- School of Engineering and Applied Sciences, Harvard University

 

Collections: Physics; Materials Science