Homework 17

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Across
  1. 4. α + Fe3C plates/needles
  2. 7. cooling below a phase transition temperature without the occurence of the transformation (homogeneous nucleation requires this between 8-300 *C)
  3. 8. 3D array of points coinciding with atom positions
  4. 9. alloy with a solute composition greater than the eutectoid composition
  5. 10. compound of two metals that has a distinct chemical formula
  6. 12. FCC iron
  7. 14. S1+LS2
  8. 17. heating above a phase transition temperature without the occurence of the transformation
  9. 19. 1st stage in transformation
  10. 20. a form of pure iron with a body-centered cubic crystal structure, occurring in low-carbon steel
  11. 21. liquid forms to two solid phases
Down
  1. 1. resistance to deformation
  2. 2. the ratio of the lateral to axial strains
  3. 3. BCT phase diffusionless transformation
  4. 5. an alloy that is placed to the left of the eutectiod point
  5. 6. a measure of a materials ability to undergo appreciable plastic deformation
  6. 11. very slowly approaching equilibrium
  7. 13. α + Fe3C layers + a proeutectoid phase
  8. 15. solid forms to two other solid phases, S2+S1S3
  9. 16. Fe3C
  10. 18. smallest repeat of entities in a crystal structure