What is the advantages of Brinell hardness test?

Answer 1

Due to the size of the indenter and the impression, the Brinell system is more indicative of the bulk material hardness compared to other techniques which test over a much smaller area and may in fact be measuring impurities or inclusions.

Other hardness tests rely on a set load being applied to a metal, or a standard-sized object being pressed into the metal, which means the more fragile metals cannot be tested for hardness. Because the Brinell test allows for accurate hardness testing while allowing both the load and the size of the ball being pressed into the metal to vary, more delicate metals can be tested than with other hardness tests.

The results of the Brinell are considered force-independent because the force can be adjusted for metals of different sizes or strengths and the results will not be affected. This is because a sphere distributes pressure evenly along its surface, and points and cones do not. Therefore, as long as the relationship between the load and the size of the carbide ball used remains constant, the results of the test will accurately measure the hardness of the material tested.

Answer 2

One advantage of the Brinell hardness test is that it can be used on a wide range of materials, including metals, non-metals, and composites. Additionally, it provides a large area of contact between the indenter and the material, giving a more representative average hardness value. Furthermore, the test is relatively simple to perform and does not require highly skilled operators.