Structure and properties of Fe–6.67% C alloy obtained by mechanical alloying

The test material was the mixture of Fe and C powders obtained by the mixing of the graphite powder with the iron powder in the proportion of 6.67% C:93.33% Fe (mass%). The powders were ground for the following time intervals: 10, 25, 50, 75 and 100 h. The microscopic observation of the shape and size of the powdered material grains was carried out by the scanning electron microscope provided within the magnification of 100–2000 times. The changes of the powder structure were tested by means of the X-ray diffractometer.