1. INT 238 Hardness

2. Outline Explain what hardness is Describe how hardness if found Compare hardness testing methods Convert between scales

3. What is Hardness A measure of resistance to deformation or penetration

4. What is Hardness

6. Testing Methods - Brinnell

9. Diameter of indentation

10. Testing Methods - Brinnel

11. Testing Methods - Brinnell

12. Vickers Microhardness

15. Rockwell Hardness

20. N T

21. Conversion

25. Material presented in this lecture: Brandt, D. A. & Warner, J. C. (2005). Metallurgy Fundamentals. Goodheart- Willcox Company, Inc. Tinley Park, Illinois.