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Monday, 21 September 2015

HARDNESS TEST

            The hardness of material is its resistance to penetration under a localized pressure or resistance to abrasion. The hardness can be determined by any one of the following tests.

(a) Indentation or Penetration test:
  1. Brinell
  2. Vicker's
  3. Rockwell.

(b) Rebound test.
(c) Scratch test.


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