The Vickers Hardness Tester is a crucial hardness measuring tool that is necessary to metallographic studies, product quality control, as well as the formation of product accreditation items.
How the Vickers Hardness Testing Equipment Works
The Vickers testing process is used for measuring both the micro as well as the macro hardness of an object. The Vickers Hardness testing equipment uses an optical testing method through which the extent of the indentation gap formed by the indentor is measured and this determines the hardness of the object being sampled out. The penetrator that is used is made up of a four-sided diamond pyramid all of which are positioned at 136 degrees.
The Vickers Hardness Tester comprises an expansive range of load and it is suitable for several applications some of which include testing the hardness of ceramics, testing the hardness of foils, testing individual micro-structures, metallic objects, and other products.
Preparation of the Sample Surface for Testing
Before the sample for testing is placed on the Vickers Hardness testing equipment, make sure that the surface is thoroughly prepared to depend on the type of load being used.
For instance, if you carrying out micro-hardness testing, you must make sure that the load utilized is below or equal to 1 kgf and the surface is prepared by either electro-polishing or mechanically polishing it.
Similarly, if you are testing for micro-hardness, you must make sure that the load utilized is above 1 kgf and that the surface gets grounded properly to withstand the heavy load.