Pearlite-to-austenite transformation
Posted: Thu Oct 27, 2022 4:00 pm
Dear Bernd,
We are currently simulating the pearlite to austenite transformation during heating at 10 °C/s.
We set both the ferrite and the cementite as anisotropic phases and the ferrite/austenite and cementite/austenite interface mobility not null for special misorientation. Our aim is to let austenite grow in the ferrite and the cementite within a given colony.
However, we discovered some anomalies during the austenite growth. The austenite nucleated at the ferrite /colony 1 interface grows in both ferrite and cementite (see the picture), consistently with the input mobility.
On the contrary, the austenite nucleated at the boundary between the two colonies grows only into the ferrite. We do not understand why the mobility of the cementite/austenite interface is zero in this case, although we set for that misorientation a mobility not null.
I attach the driving file and the orientation, mobility and interface output showing the different behaviour of the austenite grains growing in colony 1 and in colony 2.
Please let me know if you need other results files.
Kind Regards,
Pina
We are currently simulating the pearlite to austenite transformation during heating at 10 °C/s.
We set both the ferrite and the cementite as anisotropic phases and the ferrite/austenite and cementite/austenite interface mobility not null for special misorientation. Our aim is to let austenite grow in the ferrite and the cementite within a given colony.
However, we discovered some anomalies during the austenite growth. The austenite nucleated at the ferrite /colony 1 interface grows in both ferrite and cementite (see the picture), consistently with the input mobility.
On the contrary, the austenite nucleated at the boundary between the two colonies grows only into the ferrite. We do not understand why the mobility of the cementite/austenite interface is zero in this case, although we set for that misorientation a mobility not null.
I attach the driving file and the orientation, mobility and interface output showing the different behaviour of the austenite grains growing in colony 1 and in colony 2.
Please let me know if you need other results files.
Kind Regards,
Pina