Sinker material to use for density measurements of high Mn-containing steels at 1650C?

06 September 2016 1 8K Report

Hi dear RG members.

I plan to use Archimedean principle for the measurements of liquid steels density. I need to select a sinker body material which can resist high Manganese steels (possibly alloyed with Titanium) - up to 10% Mn and 10% of Ni.

Previously BN-Zr2O3 ceramic sinkers were used. But steel had heavily damaged them.

Iurii Korobeinikov

Dear Dr. Fyk,

Thank you for the answer!

As far as I understand from phase diagrams, W, Nb, Mo have eutectics with Fe in the temperatures well below 1650C. It means that my sinker will be partially melt in the steel. In particular, W has eutectic at the temperature of 1820K - 1547C.

Therefore I'm looking to the side of ceramic materials.

Best regards,

Iurii Korobeinikov

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