What factors influence the accuracy of Vickers hardness testing compared to other methods of measuring material strength?
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Vickers hardness testing is influenced by several factors that can affect its accuracy compared to other methods of measuring material strength. One important factor is the indentation size effect, which significantly affects the results of hardness measurements by changing their values by 20-60% . Another factor is the shape and curvature of the surface being tested, which requires correction factors to be applied to obtain accurate hardness values . Additionally, the manual measurement of hardness from sample images can be tedious, time-consuming, and prone to human error . On the other hand, machine learning models have been applied to improve the accuracy of hardness predictions by considering various input features and properties of the material . These factors highlight the need for careful consideration and standardization in Vickers hardness testing to ensure accurate and reliable results.
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