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THE CALPHAD METHOD AND ITS ROLE IN MATERIAL AND PROCESS DEVELOPMENT.

Ursula R Kattner1

  • 1Materials Science and Engineering Division, National Institute of Standards and Technology, 100 Bureau Dr. Stop 8565, Gaithersburg MD 20899, U.S.A. ursula.kattner@nist.gov.

Tecnologia Em Metalurgia, Materiais E Mineracao
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Summary
This summary is machine-generated.

The CALPHAD method aids materials design by enabling thermodynamic database development. This allows calculation of crucial data for complex alloys, accelerating the creation of novel materials.

Keywords:
CALPHADdatabasesdiffusionphase equilibriaphase-based propertiesthermodynamics

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Area of Science:

  • Materials Science
  • Thermodynamics
  • Computational Materials Science

Background:

  • Designing new materials and manufacturing processes relies on accurate materials data.
  • Commercial alloys often have complex compositions, with limited available data for design.
  • Existing data is insufficient for the development of advanced alloys and processes.

Purpose of the Study:

  • To provide an overview of the CALPHAD method for materials data development.
  • To highlight the utility of CALPHAD in designing new materials and manufacturing processes.
  • To review CALPHAD software tools, databases, and application examples.

Main Methods:

  • The CALPHAD (Calculation of PHAse Diagrams) method.
  • Development of thermodynamic and property databases.
  • Extrapolation methods from lower-order to higher-order systems.

Main Results:

  • CALPHAD enables the creation of comprehensive thermodynamic and property databases.
  • Extrapolation techniques allow accurate data prediction for complex, higher-order systems.
  • CALPHAD-calculated data has proven invaluable for new materials design.

Conclusions:

  • The CALPHAD method is essential for generating reliable materials data.
  • CALPHAD facilitates the design of novel alloys and optimized manufacturing processes.
  • This review underscores the significance and broad applicability of CALPHAD in materials science.