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Letters to Nature
Nature 166, 359 (26 August 1950); doi:10.1038/166359a0

The Meyer Law for Hardness Tests

EMILIO JIMENO & JOSE TERRAZA

Metallographic Laboratory, University of Madrid. March 20.

THE indentation test, made by forcing an unde-formable ball into the test piece, of which the Brinell test is the most extended form, is governed by an empirical relation between load and diameter, P = a dn, due to Meyer.

  1. Lorenz , "Technische Elastizitaetslehre" (Munich, 1913).
  2. Poeschl , Archiv. Eisenhüt., 16, 425 (1934).



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