erm Remaining Time 12:55:13 A Brinell hardness test is caried out on a specimen, using a...
Please explain every thing. Please write in the paper and then take a photo. 2.59 The Brinell hardness test is used to measure the indentation hardness of materials. It involves penetration of an indenter, in the form of a ball of diameter D (mm), under a load P (kg) as shown in Fig. 2.13a. The Brinell hardness number (BHN) is defined as 2P where A (in mm2) is the spherical surface area and d (in mm) is the diameter of...