NEN EN 843-4 : 2005
Current
The latest, up-to-date edition.
ADVANCED TECHNICAL CERAMICS - MECHANICAL PROPERTIES OF MONOLITHIC CERAMICS AT ROOM TEMPERATURE - PART 4: VICKERS, KNOOP AND ROCKWELL SUPERFICIAL HARDNESS
12-01-2013
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Significance and use
4.1 General points
4.2 Verification of test equipment
4.3 Conversion of hardness numbers to other scales
5 Test method: method A: Vickers test
5.1 Principle
5.2 Machine calibration
5.3 Test piece
5.4 Test procedure
5.5 Accuracy and uncertainties
6 Test method: Method B: Knoop test
6.1 Principle
6.2 Machine calibration
6.3 Test piece
6.4 Test procedure
6.5 Accuracy and uncertainties
7 Test method: Method C: Rockwell tests
7.1 Principle
7.2 Machine calibration
7.3 Test piece
7.4 Test procedure
7.5 Accuracy and uncertainties
8 Interpretation
8.1 Microstructural factors
8.2 Interpretation of results
9 Test report
Annex A (informative) Interlaboratory evaluation of
hardness test methods
Bibliography
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