laboratory workshop manual

laboratory workshop No 2, part 3.2 - hardness measurement

experamental part presentation

Report must be composed according to the report requirements (page 29)

Additional demands for laboratory workshop report:

To draw schemes of Brinell and Rockwell hardness measurement methods (slides 7, 8)

To draw and to fill the table on the slide 12

Summary:

1 - according to the purpose of laboratory workshop;

2 - according to results: to describe the difference between investigated materials: steel 20 (0,2% of C), steel 45 (0,45% of C), steel U8 (0,8% of C, quenched state) and duralumin D16; to compare the hardness values for investigated materials and to explain the physical essense of this difference; to discribe what material hardness can be measured by Brinell and Rockwell correspondly; 

Hardness conversion table: