MICRESS Forum

Dear PeGr, If "Bird's eye" view means that you are looking onto the top so that your simulation domain is along the isothermal plane, then you are right. But then, you cannot simulate nucleation of primary phase inside this plane, because the dendrites come from below. You thus need to set nuclei or...

Dear tatalemon, Thanks for sending me your input and .ges5-files. Your setup contains a Ni-based fcc-phase which is in contact with a gas phase. 2 oxide phases, (Corundum and Benisite) shall be nucleated at the interface between gas and fcc. When running the simulation using MICRESS Version 6.4, the...

Hi tatalemon,

Seems to be a problem deep inside the Thermo-Calc TQ-library, which may be due to bug or to errors in your input file. Can you please share your driving file and your .ges5-file if possible?

Bernd

Dear Roscoe, Indeed, it is the multicomponent phase diagram which you should use for obtaining the linearisation data for MICRESS. Using the binary phase diagrams would only be correct in case of dilute alloys. Obtaining linearised descriptions for multicomponent systems is not trivial. You can do t...

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...

Dear kaiyang,

More information is required. Please attach input files or send them as PM if confidential.

Hi PeGr,

there seems to be something wrong with the .GES5-file - has it been created under Windows?

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 ...

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...

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...