A New Thermodynamic Parameter to Predict Formation of Solid Solution or Intermetallic Phases in High Entropy Alloys (Postprint)

Abstract

A simple thermodynamic criterion is proposed to predict the presence or absence of equilibrium intermetallic phases in a high entropy alloy at a given temperature T. The criterion was verified using 45 currently available HEAs, for which equilibrium phases and respective annealing temperature are reported. The present model shows good correlation with experiment and gives an improved ability to predict formation of solid solution and intermetallic phases compared to earlier models.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 02, 2015
Accession Number
AD1032781

Entities

People

  • D. B. Miracle
  • O.N. Senkov

Organizations

  • Air Force Research Laboratory Materials and Manufacturing Directorate

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Alloys
  • Annealing
  • Crystal Structure
  • Energy
  • Equations
  • Free Energy
  • Heat Of Formation
  • Mechanical Properties
  • Microstructure
  • Military Research
  • Phase Diagrams
  • Phase Transformations
  • Solid Solutions
  • Statistical Analysis

Readers

  • Combustion science or combustion engineering.
  • Computational Modeling and Simulation
  • Powder metallurgy of Titanium alloys.