diamond-pyramid hardness test

diamond-pyramid hardness test

[¦dī·mənd ¦pir·ə·mid ′härd·nəs ‚test]
(metallurgy)
An indentation hardness test in which a diamond-pyramid indenter, with a 136° angle between opposite faces, is forced under variable loads into the surface of a test specimen. Also known as Vickers hardness test.