First-principles theory of coherent precipitation in size-mismatched alloys

C. Wolverton*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

A first-principles thermodynamic approach for studying coherent precipitation in size-mismatched alloys is presented. The approach takes into account both strain and interfacial energies, incorporates the effects of finite temperature, and can treat systems with length scales of ∼200Å, all with first-principles accuracy. The method is applied to coherent precipitation in Al-Cu and Al-Mg alloys, where the coherent precipitation sequence is experimentally well-studied, but still controversial. This theoretical approach should aid in understanding the strengthening mechanism underlying precipitation hardening in these materials.

Original languageEnglish (US)
Pages (from-to)469-472
Number of pages4
JournalMaterials Science Forum
Volume294-296
StatePublished - Jan 1 1999

Keywords

  • Al-Cu
  • Al-Mg
  • Coherency Strain
  • First-Principles Theory
  • Precipitation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'First-principles theory of coherent precipitation in size-mismatched alloys'. Together they form a unique fingerprint.

Cite this