Search found 1251 matches

by Bernd
Fri Jul 30, 2021 11:32 am
Forum: solid-solid phase transformations
Topic: Pearlite to Austenite/Cementite
Replies: 4
Views: 18

Re: Pearlite to Austenite/Cementite

Dear Ali, I think the biggest issue is the too coarse resolution which increases grid anisotropy (i.e. preferential growth of the lamellea in the grid directions). I think there should be some room for increasing the grid resolution (decreasing Δx) because currently most time is spent in list-relate...
by Bernd
Thu Jul 29, 2021 7:56 pm
Forum: solid-solid phase transformations
Topic: Pearlite to Austenite/Cementite
Replies: 4
Views: 18

Re: Pearlite to Austenite/Cementite

Dear Ali, Thanks for sending me the missing restart-file by email. While running your simulation I found that the problem of insufficient fcc growth is essentially caused by interaction of two issues: 1.) The linear phase diagram description you use is inconsistent. It must be inconsistent, because ...
by Bernd
Wed Jul 28, 2021 6:36 pm
Forum: solid-solid phase transformations
Topic: Pearlite to Austenite/Cementite
Replies: 4
Views: 18

Re: Pearlite to Austenite/Cementite

Dear Ali, It is difficult to find anything definitively wrong in your input file without trying to run the problem and without seeing the different types of information from the output. There e.g. could be problems with the dimension of physical parameters like the diffusion coefficients (which can ...
by Bernd
Wed Jul 21, 2021 6:27 pm
Forum: solidification
Topic: solidification of MPEA during LPBF
Replies: 1
Views: 88

Re: solidification of MPEA during LPBF

Dear Atur, During typical L-PBF processes, the solidification speed is well below 1 m/s. For that reason, we do not expect solute trapping (in the sense of non-equilibrium partitioning at the interface) under these conditions. The MICRESS software is based on local quasi-equilibrium at the interface...
by Bernd
Thu Jul 15, 2021 8:03 pm
Forum: trouble-shooting
Topic: MICRESS messages
Replies: 3
Views: 91

MICRESS messages: Other types of error messages

Other types of error messages: Checking for nucleation Nucl.Ph: 2 error= 40200 In this case, error 40200 occurred (wrong state of order in phase 2 , see above) while checking for nucleation and calculating nucleation undercooling in a specific location Thermo-Calc error 1611 MICRESS error 20 phases ...
by Bernd
Thu Jul 15, 2021 8:00 pm
Forum: trouble-shooting
Topic: MICRESS messages
Replies: 3
Views: 91

MICRESS messages: Notifications

There is a number of messages which are not indicating an error but just give relevant information to the user: Fast moving fragment(s) relinearized LIQUID/FCC_L12 (7) This message informs that for interface LIQUID/FCC_L12 7 relinearisations have been performed because a substantial part of the inte...
by Bernd
Thu Jul 15, 2021 6:32 pm
Forum: trouble-shooting
Topic: MICRESS messages
Replies: 3
Views: 91

MICRESS messages: Standard TQ-Errors

MICRESS errors, which occur in MICRESS routines in connection to calls to the TQ-Library, are numerated and will be listed in the following. In some cases, the number is expanded to 3,5 or 6 digits and contains information about the involved element or phase numbers. In other occasions there is a di...
by Bernd
Thu Jul 15, 2021 5:26 pm
Forum: trouble-shooting
Topic: MICRESS messages
Replies: 3
Views: 91

MICRESS messages

Hi all, MICRESS may give the user a lot of different messages during runtime, appearing mostly in the screen or .log output and revealing information about the current status or errors. Unfortunately, many of these messages have been created to be useful for developers only, while others are directe...
by Bernd
Thu Jul 15, 2021 5:01 pm
Forum: solidification
Topic: Misorientation: phase_interaction & redistribution_control
Replies: 1
Views: 51

Re: Misorientation: phase_interaction & redistribution_control

Dear Mauro, Misorientations are calculated on basis of the individual grain orientations. In the MICRESS input file, you can define grain orientations in different ways (quaternions, Euler angles, etc.), the simplest way is just by one angle in 2D ("angle_2D"). The misorientation is the smallest "di...
by Bernd
Thu Jul 15, 2021 4:52 pm
Forum: solidification
Topic: Seed-density and seed-undercooling models
Replies: 26
Views: 1560

Re: Seed-density and seed-undercooling models

Hi Mauro, This indeed is a quite long series of questions, but don't worry about "spamming" - your questions and my answers to them hopefully provide useful information for other users, which can be searched systematically, and thus do not harm to anybody. Let me try to answer in the order of your q...