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Intro To Engineering Materials
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Intro To Engineering Materials
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25 Questions

1. The slope of the concentration profile at a specific position.

2. The energy required to separate two atoms that are chemically bonded to each other.

3. The natural logarithm of the ratio of instantaneous gauge length to original guage length of a specimen being deformed by a uniaxial force.

4. The curve that results when the concentration of a chemical species is plotted versus position in a material.

5. The change in gauge length of a specimen divided by its original gauge length.

6. The stress required to produce a very slight yet specified amount of plastic strain.

7. The diffusion condition for which there is some net accumulation or depletion of diffusing species.

8. The rate of diffusion or rate of mass transfer.

9. The ratio of stress to strain when deformation is totally elastic; also a measure of the stiffness of a material.

10. The capacity of a material to absorb energy when it is elastically deformed.

11. Prisms having three sets of parallel faces.

12. The maximum engineering stress - in tension - that may be sustained without fracture.

13. Product of the calculated stress level and a design factor.

14. Crystal structure with a hexagonal unit cell. Coordination # = 12. APF = 0.74.

15. The instantaneous load applied to a specimen divided by its cross - sectional area before any deformation.

16. A homogeneous crystalline phase that contains two or more chemical species.

17. Deformation that is permanent or nonrecoverable after release of the applied stress.

18. The instantaneous applied load divided by the instantaneous cross - sectional area of a specimen.

19. A stress used for design purposes; for ductile metals - it is the yield strength divided by a factor of safety.

20. A linear defect associated with the lattice distortion created when normally parallel planes are joined together to form a helical ramp.

21. The process whereby atoms of one metal diffuse into another.

22. Metals as well as nonmetals that have more than one crystal structure.

23. Having identical values of a property in all crystallographic directions.

24. The onset of plastic deformation.

25. Time- dependent elastic deformation.

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