Hardness Error
Hardness errors arise from measurement inaccuracies, specimen tilt, or inadequate preparation. They affect the accuracy of material characterization.
Physicochemical Mechanism of Action
Hardness errors occur when the measurement of the hardness value is not performed correctly. This can be caused by inaccuracies in the measuring device, incorrect specimen tilt, or incomplete specimen preparation.
Metallurgical Relevance & Risks in Welding
Hardness errors can lead to mistakes in material selection and impair the strength and toughness of the material. This can result in cracks, failure, or reduced component life.
Workshop Practice & Action Instructions
To avoid hardness errors, the following measures must be strictly observed:
• Use a calibrated and precise measuring device.
• Ensure the specimen is selected correctly and at random from the workpiece.
• Follow preparation routines carefully, including cleaning and proper temperature control.