THE INFLUENCE OF THE TIME EXTENSION ON THE PRELIMINARY TEST FORCE IN ROCKWELL HARDNESS MEASUREMENTS

Renato Reis Machado, Jorge Trota Filho, Sergio Pinheiro de Oliveira, Islei Domingues da Silva, Bianca da C. O. Muniz

Abstract

In the light of the ISO 6508 revision, under the ISO TC 164 Technical Committee on Mechanical Testing of Metals, a study on the influence of the extended duration of the preliminary test force was taken, which in some cases a longer time could be required. Several HRC tests were performed with different conditions of time and materials by using the Hardness Standardisation Machine of INMETRO/Brazil.

Keywords

ISO 6508 revision, hardness testing, preliminary test force

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IMEKO-TC5-2010-NP-005.pdf

DOI

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IMEKO TC

TC5 - Hardness Measurement

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