AddThis Social Bookmark Button

Google
Web www.calphad.com
















AddThis Social Bookmark Button

Google
Web www.calphad.com

Phase Diagrams

Iron-Cobalt (Fe-Co) Phase Diagram

Figure 1 shows the iron-cobalt phase diagram calculated with Thermo-Calc, coupled with PBIN thermodynamic database.

According to the Fe-Co phase diagram, the melting point of iron and cobalt at the pressure of 101325 Pa is 1538 °C and 1495 °C, respectively.

Iron-Cobalt (Fe-Co) Phase Diagram

Figure 1. Fe-Co phase diagram shows which phases are to be expected at equilibrium for different combinations of cobalt content and temperature. The Fe-Co phase diagram was calculated with Thermo-Calc, coupled with PBIN thermodynamic database.

In the Fe-Co system, at approximately 50 at. % Co and below 1000 K, the random BCC A2 alpha phase transforms into the ordered simple cubic B2 structure (not shown in Figure 1) of identical overall composition, where the iron atoms arrange themselves preferentially to the cube corners and the cobalt atoms to the cube centers. This second-order transformation involves a relatively small amount of energy.

Ordering into the cubic B2 structure is accompanied by an increase in hardness compared to the disordered (random) BCC A2 alpha phase.

Free Download

• The phase diagram of Iron-Cobalt binary system

Consulting Services

To cover the costs of running this site, we accept consulting assignments to perform customer tailored Thermo-Calc and DICTRA calculations. If we cannot solve your problem, we will help you find at least one organization which has the right human and computational resources to address your specific needs.

We offer a money back guaranty for our consulting services if you are not satisfied. Drop us a line; our e-mail address is: info@calphad.com.