Search found 1506 matches
- Thu Nov 09, 2023 11:57 pm
- Forum: solidification
- Topic: Dendritic growth under high cooling rates
- Replies: 7
- Views: 94337
Re: Dendritic growth under high cooling rates
Dear PeGr, I tried your simulation input files as you sent them using MICRESS Version 7.1, and the results seems not so bad. That means, you get solidification in form of s dendrite, nucleation of the peritectic phase at the interfaces between the dendrite and the liquid, and complete solidification...
- Tue Oct 31, 2023 9:09 am
- Forum: solid-solid phase transformations
- Topic: solid-solid phase transformation
- Replies: 4
- Views: 11097
Re: solid-solid phase transformation
Dear kaiyang,
More information is required. Please attach input files or send them as PM if confidential.
More information is required. Please attach input files or send them as PM if confidential.
- Fri Oct 13, 2023 1:45 am
- Forum: trouble-shooting
- Topic: Stuck on step "Reading Ges5 file..."
- Replies: 11
- Views: 46630
Re: Stuck on step "Reading Ges5 file..."
Hi PeGr,
there seems to be something wrong with the .GES5-file - has it been created under Windows?
there seems to be something wrong with the .GES5-file - has it been created under Windows?
- Tue Oct 10, 2023 11:57 am
- Forum: solidification
- Topic: Diffusionless transformation
- Replies: 5
- Views: 10865
Re: Diffusionless transformation
Hi Ghavam, I think you have the following errors in your input file: 1.) You cannot have set C to stoichiometric when using the nple or para option in MICRESS. I also don't think it makes much sense otherwise. 2.) It is absolutely necessary to have some updating of thermodynamic data, e.g. all 0.01 ...
- Wed Oct 04, 2023 12:42 am
- Forum: solidification
- Topic: Diffusionless transformation
- Replies: 5
- Views: 10865
Re: Diffusionless transformation
Dear Ghavam, If you think the transformation should be very fast because of a diffusionless transformation, you should not use "mob_corr", because this limits the transformation kinetics to "diffusion-limited". You say that nple or para/paratq gives numerical problems - which are the problems? If th...
- Tue Sep 05, 2023 9:50 pm
- Forum: Homogenization/heat treatments
- Topic: IN718 Heat Treatments - Time/Solver Steps
- Replies: 2
- Views: 11509
Re: IN718 Heat Treatments - Time/Solver Steps
Hi David, Welcome to the MICRESS Forum! It is also nice to hear that, as you say, you have overcome the numerical issues with the LAVES phase and already got reasonable results for solidification under SLM-conditions. With performance issues, the first thing to do should be to have a look at the .Ta...
- Tue Sep 05, 2023 12:48 pm
- Forum: solidification
- Topic: Solidification of Cu alloys
- Replies: 3
- Views: 8843
Re: Solidification of Cu alloys
Dear worker, Welcome to the MICRESS Forum! While in newer MICRESS versions, the "penalty" function (which uses the modification of the driving force to prevent negative phase compositions) can be used independently from the "limits" (which do not allow TQ-equilibria outside a user-defined compositio...
- Wed Aug 23, 2023 12:50 pm
- Forum: solid-solid phase transformations
- Topic: Initial concentrations
- Replies: 13
- Views: 39007
Re: Initial concentrations
Dear Roscoe, This option has been introduced in Version 7.1 of MICRESS and can be specified in the Output section of the driving file: # Output # ====== # # Output times # ------------ # Finish input of output times (in seconds) with 'end_of_simulation' # 'regularly-spaced' outputs can be set with '...
- Tue Aug 15, 2023 10:12 pm
- Forum: solidification
- Topic: Parameters for latent heat?
- Replies: 2
- Views: 14937
Re: Parameters for latent heat?
Of course, the last formula must read:
f'α=(fα/(fα+f*m))3/2 ∗ (fα+f*m)
with
f*m = fm -fcrit if fm ≥ fcrit
f*m = 0 else
f'α=(fα/(fα+f*m))3/2 ∗ (fα+f*m)
with
f*m = fm -fcrit if fm ≥ fcrit
f*m = 0 else
- Tue Jul 18, 2023 2:14 pm
- Forum: solidification
- Topic: Solidification of Cu alloys
- Replies: 3
- Views: 8843
Re: Solidification of Cu alloys
Dear A ZU, Welcome to the MICRESS forum. Unfortunately, there are various reasons which can lead to a behavior like what you describe, especially in an old MICRESS version like 6.4. But, generally, I would proceed in the following way: 1.) Check whether your secondary phase has been attributed to th...