2014
DOI: 10.21014/acta_imeko.v3i3.72
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Proposed definition for the Brinell hardness indentation edge

Abstract: Abstract:The industrial Brinell hardness test has been in common use for over 100 years. The test is defined by standardized procedures stating that the Brinell hardness number is proportional to the test force divided by the surface area of the indentation. The test procedures require that the surface area be determined by measuring the indentation diameter after removing the test force. This measurement is usually made using an optical microscope, but without having a physical definition of the indentation e… Show more

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Cited by 6 publications
(26 citation statements)
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“…There are several ways to make this but all of them depends on the edge of the groove. For optical measuring instruments, it has been demonstrated that the first and the second derivatives could be used to determine where the groove starts [197,198] :…”
Section: Methodsmentioning
confidence: 99%
“…There are several ways to make this but all of them depends on the edge of the groove. For optical measuring instruments, it has been demonstrated that the first and the second derivatives could be used to determine where the groove starts [197,198] :…”
Section: Methodsmentioning
confidence: 99%
“… Dependencia de los parámetros empleados en los métodos basados en sistemas ópticos: amplificación, apertura numérica, etc.  La identificación de la línea del borde de la huella en la que debe medirse el diámetro es una tarea compleja ya que no existe un borde físico diferenciado que pueda observarse al microscopio, ni tampoco una definición física comúnmente aceptada que permita localizar dicho borde [4].…”
Section: Causas De Las Diferencias Obtenidas En Las Medidasunclassified
“…Analizando los resultados de la intercomparación clave de dureza Brinell realizada en 2003 -2004 por el CCM_WGH [CCM.H-K2] entre distintos Institutos Nacionales de Metrología que materializan patrones de dureza Brinell, Hattori [49] obtuvo dos conclusiones principales:  La diferencia de valores obtenidos por los distintos Institutos Nacionales no puede explicarse por la incertidumbre dada por cada uno. Esto significa que las incertidumbres han sido subestimadas, o bien, que algún parámetro no controlado tiene un efecto significativo sobre las mediciones.…”
Section: El Problema De La Elección Del Bordeunclassified
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