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Bright field image.

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Presentation on theme: "Bright field image."— Presentation transcript:

1 Bright field image

2 Bright field image

3 Dark field image

4 Dark field image

5 Tolansky Interference Contrast

6 Tolansky Interference

7

8

9 Normasky Interference Contrast

10 Oblique illumination

11 Oblique illumination

12 Stucture of pearlite?

13

14 Three-dimensional shape of graphite (adapted from Underwood)

15 Stereological Terms

16 Volume fraction Area fraction

17 Line fraction

18 Point fraction

19

20

21

22 ASTM grain size number number of grains per square inch at x100

23 Systematic Errors

24 Systematic Errors

25 Systematic Errors

26 Shape parameters: roundness

27

28

29

30

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