Hardness Test on Vickers Hardness Standard Blocksby DUH-211S Dynamic Ultra Micro Hardness Tester

Introduction

Hardness is used for evaluating a variety of industrial materials due to its ease of measurement. In particular, "Vickers hardness" is known for its correlation with tensile strength in the measurement of metal materials, and is used widely and practically since it enables specimens to be measured with ease without the need to make specimens in special shapes. However, in measurement, the size of the indentation must be measured by a microscope. So, when measuring specimens with a thin coating of about 50 μm or less, the measurement result might be influenced by the hardness of the base materials underneath if an indentation having a sufficient size is made in the specimen to ensure measurement accuracy. The Shimadzu DUH-211 Dynamic Ultra Micro Hardness Tester can test thin-film samples such as these and has a function for converting to Vickers hardness according to ISO. The following introduces the result of a hardness test performed on Vickers hardness standard blocks to check Vickers hardness conversion accuracy on this system.

October 22, 2010 GMT