Test force levels in hardness testing
Test force levels in hardness testing include micro, low-load, and macro-hardness ranges. These enable precise testing of various materials and components.
Physicochemical Mechanism of Action
The hardness of a material is determined by its ability to resist mechanical loads. The indenter load steps vary in their application and enable specific hardness measurement under different loads.
Metallurgical Relevance & Welding Risks
Selecting the wrong indenter load step can lead to inaccurate results, compromising quality assurance. Micro-hardness testing is especially important for fine microstructures and thin-walled components, while macro-hardness testing is better suited for solid pieces.
Workshop Practice & Action Instructions
Use micro-hardness testing for layers under 1 mm thickness, low-load hardness testing for components between 1 and 50 mm thickness, and macro-hardness testing for pieces over 50 mm thickness. Make sure to apply the correct load step to get accurate results.