抄録
The effect of nickel on the sigma transformation in Fe-45%Cr alloys, was studied by dilatometric, magnetic measurements and microscopic observations. Specimens were transformed into the sigma phase in the temperature range from 650°∼800°C for various periods of time. It was established that the rate of the sigma transformation in Fe-Cr alloys and the expansion coefficient of sigma increase with the increase of the nickel content up to 4%. Some effects of nickel on physical and mechanical properties of ferrite of Fe-Cr alloys were also studied.
