Vickers testing system is considered as a static hardness testing system that may be characterized further into the subsequent features: If HV is very first expressed in N/mm2 (MPa), or usually by converting from kgf/mm2, then the tensile energy (in MPa) of the material can be approximated as σu http://vickers-hardness-tester52727.blogproducer.com/2615442/the-ultimate-guide-to-vicker-hardness-testing