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McQuaid-Ehn test [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1993-04-23

English

Subject field(s)
  • Steel
DEF

A test for determining the grain-size characteristics of a steel in which a sample is carburized for 8 hours at 1700 °F (927°C) and cooled slowly; the high-carbon case on slow cooling will reject cementite at the austenite grain boundaries and, by polishing and etching, the grains will clearly be seen under a microscope.

French

Domaine(s)
  • Acier
DEF

Méthode de contrôle de grosseur de grain austénitique pour les aciers de cémentation, consistant à cémenter un acier dans un cément normalisé, puis à mesurer par microscope les grains ainsi mis en évidence.

Spanish

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