Density is one of the most basic physical properties of materials. Density is the mass per unit volume of a material, represented by the symbol p, and its unit is g/cm.
When the grade of cemented carbide is known, by measuring its density, we can examine whether the composition and structure of the alloy have changed, and whether there are defects such as pores, inclusions, and graphite inside. If the cemented carbide grade is unknown, the alloy grade can be inferred by testing the alloy density and combining it with other testing methods.
The density of the alloy can be calculated by finding the volume of the sample according to Archimedes’ principle. The density ρ of the sample is calculated from Eq.
By subtracting the apparent mass in liquid from the mass of the sample in air, the test of cemented carbide density has certain requirements for the sample volume. When the volume is too small (<0.2cm), the measurement error is too large, so the volume If it is too small, several samples can be weighed together to ensure that the volume is not less than 0.5cm (a single volume is not less than 0.05cm3).
Post time: Jan-13-2024
