Grain Boundary Transitions in Binary Alloys

Ming Tang, W. Craig Carter, and Rowland M. Cannon
Phys. Rev. Lett. 97, 075502 – Published 14 August 2006

Abstract

A thermodynamic diffuse interface analysis predicts that grain boundary transitions in solute absorption are coupled to localized structural order-disorder transitions. An example calculation of a planar grain boundary using a symmetric binary alloy shows that first-order boundary transitions can be predicted as a function of the crystallographic grain boundary misorientation and empirical gradient coefficients. The predictions are compared to published experimental observations.

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  • Received 19 May 2006

DOI:https://doi.org/10.1103/PhysRevLett.97.075502

©2006 American Physical Society

Authors & Affiliations

Ming Tang and W. Craig Carter

  • Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

Rowland M. Cannon*

  • Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

  • *Deceased.

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Issue

Vol. 97, Iss. 7 — 18 August 2006

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