Search found 22 matches

by R.Hess
Thu Apr 27, 2017 1:39 pm
Forum: pre-processing
Topic: Initial Concentration
Replies: 10
Views: 11271

Re: Initial Concentration

Dear Bernd, since my simulation of austenitisation works (by the way: your approach was very helpful - thank you !) i want to simulate martensitic formation. But i got another problem. Because of the complicated circumstances, my explanation could be confusing. so i will try to explain as simple as ...
by R.Hess
Wed Apr 19, 2017 2:23 pm
Forum: solid-solid phase transformations
Topic: Reg. Modeling of alpha-gamma transformation
Replies: 19
Views: 9632

Re: Reg. Modeling of alpha-gamma transformation

Dear Bernd, i increased the heating rate, because our final target are heating rates about 1E6. But it doesn´t matter in this case and for this simulation. I decreased the heatingrate to 1250K/s. Furthermore i matched the time intervals. Nevertheless, i nearly receive the same result as before. Exce...
by R.Hess
Tue Apr 18, 2017 10:08 am
Forum: solid-solid phase transformations
Topic: Reg. Modeling of alpha-gamma transformation
Replies: 19
Views: 9632

Re: Reg. Modeling of alpha-gamma transformation

Hi Bernd, thank you for your helpful answer. My simulation-output looks much better. Nevertheless i got two last questions(hopefully "last" :lol: ). I matched the time steps, the mobility (like you mentioned above) and furthermore i increased the cooling rate. Now the seeds austenite seeds are growi...
by R.Hess
Wed Apr 12, 2017 12:08 pm
Forum: solid-solid phase transformations
Topic: Reg. Modeling of alpha-gamma transformation
Replies: 19
Views: 9632

Re: Reg. Modeling of alpha-gamma transformation

Dear Bernd, i´m sorry for my late reply and for my vague question. I try to model the austenite formation of a low carbon steel. My first problem was to represent the ferrite-pearlite structure. So i thought it would be a good idea, to use the final structure of the GammaAlphaPearlite-Example as the...
by R.Hess
Thu Apr 06, 2017 2:46 pm
Forum: solid-solid phase transformations
Topic: Reg. Modeling of alpha-gamma transformation
Replies: 19
Views: 9632

Re: Reg. Modeling of alpha-gamma transformation

Dear Bernd, i also tried to simulate the austenite formation, but i cant reach a useful result. My target is, to simulate the formation of austenite with a high heating rate. Because of that, i thought it would be better to start the first simulation with a low heating rate to approximate to the tar...
by R.Hess
Mon Jan 02, 2017 9:36 am
Forum: pre-processing
Topic: Initial Concentration
Replies: 10
Views: 11271

Re: Initial Concentration

Hello and a happy new year, i use the Micress version 6.200(windows). I changed the things you told me, but i got the same error-message as before. I tried to run the same process, but with a thermocalc coupled simulation. the error message i got here, is : unable to read from file [...] STOP in rou...
by R.Hess
Mon Dec 19, 2016 12:50 pm
Forum: pre-processing
Topic: Initial Concentration
Replies: 10
Views: 11271

Re: Initial Concentration

Hello, thank you for your reply. I have a further question. When i run the simulation with the "structure_only" option, micress gives me the following errors: http://www2.pic-upload.de/thumb/32322256/Micress_errors.png what can i do against this problem ? Do you need more information about the input...
by R.Hess
Tue Dec 06, 2016 2:46 pm
Forum: pre-processing
Topic: Initial Concentration
Replies: 10
Views: 11271

Re: Initial Concentration

Additional Information:

when i try to run the simulation with this restart option, following error occurs:
Unable to read from File .....
Reading nucleation data



what does that mean? Or why is it possible to read all informations except the nucleation data?
by R.Hess
Tue Dec 06, 2016 2:38 pm
Forum: pre-processing
Topic: Initial Concentration
Replies: 10
Views: 11271

Initial Concentration

Hello, i want to simulate the following phase transitions: Ferrite/Pearlite -> Austenite (heating) Austenite -> Martensite (fast cooling) It is well known, that there is no way to represent Pearlite as a separate Phase in Micress. Because of that, it seems to be very difficult to set a FP strucuture...
by R.Hess
Tue Nov 15, 2016 4:00 pm
Forum: solid-solid phase transformations
Topic: Martensitic Transformation
Replies: 3
Views: 3960

Martensitic Transformation

Hello, we try to simulate the microstructure evolution during a cooling process in a heat affected zone of a low carbon steel. We expect a martensitic structure because of the high cooling rates (about 500-1000k/s). My first question is, is it possible to couple TTT Diagrams from ThermoCalc with Mic...