While the development of CrxN phases starts at 600°C, its formation on chrome is best evidenced at T > 700° C. Cr2N + Cr phase appears at T > 700°C, then with 700°C > T < 1,000°C the CrN and Cr2N phases are formed and if T > 1,000°C, only one phase is formed, Cr2N, because of CrN's ther-modynamic instability.
Si bien el desarrollo de fases CrxN se inicia a 600 °C, su formación sobre cromo se evidencia mejor a T > 700 °C. La fase Cr2N+Cr aparece a T > 700 °C, luego a 700 °C > T < 1.000 °C se presentan fases CrN+Cr2N y Cr2N si T > 1.000 °C, por inestabilidad termodinámica de CrN.