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Thermodynamics

Thermodynamics. cml.postech.ac.kr/teaching.html Graduate Institute of Ferrous Technology (GIFT). Mechanically Alloyed Oxide Dispersion Strengthened Metals. Atom probe image of MA957. MA956. Chou & Bhadeshia, 1994. MA956. Chou & Bhadeshia, 1994. Mechanical Mixture. free energy of .

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Thermodynamics

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  1. Thermodynamics cml.postech.ac.kr/teaching.html Graduate Institute of Ferrous Technology (GIFT)

  2. Mechanically Alloyed Oxide Dispersion Strengthened Metals

  3. Atom probe image of MA957

  4. MA956 Chou & Bhadeshia, 1994

  5. MA956 Chou & Bhadeshia, 1994

  6. Mechanical Mixture free energy of mechanical o m mixture B G* o m Gibbs free energy per mole A x 1-x A B Concentration x of B

  7. free energy of mechanical o m mixture B G* Gibbs free energy per mole o m A ∆G M G{x} free energy of solution A B x Composition

  8. For a random mixture, number of configurations given by:

  9. Boltzmann

  10. Classical theory for entropy of mixing

  11. Solution-like behaviour when particles about 1000 atoms in size Free energy of mixing due to configurational entropy alone

  12. Enthalpy

  13. Surface per unit volume Sv Solution formation impossible! Particle size

  14. coherent coherent incoherent

  15. Single barrier to solution formation when components attract Badmos and Bhadeshia, 1997

  16. Double barrier to solution formation when components immiscible Badmos and Bhadeshia, 1997

  17. o m B o m A free energy of solution A B Composition

  18. o m B o m Paradox at concentration extremities vanishes in the discrete model of concentration A Gibbs free energy per mole A B Concentration x of B

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