Examinations at the material 1.7176

 

The test series should convey knowledge about the grain size and its growth into dependence of the quenching temperature. The examined material was 55Cr3.
Initial condition : hot rolled 15,00 mm , untreated
Heat treatment : laboratory furnace (volume 5 liter) ; soaking of the samples in 5 minutes
Hardening : different temperatures , holding time 30 minutes , quenching in oil
Tempering : 450° C , holding time 60 minutes , cooling at air

 

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