Search found 1505 matches

by Bernd
Tue Apr 25, 2023 5:47 pm
Forum: solid-solid phase transformations
Topic: Eigenstrain
Replies: 14
Views: 52358

Re: Eigenstrain

Dear Jane, Eigenstrain is a required input parameter for any simulation with stress coupling. It can only disfavor a phase transition if it is higher for the forming phase than for the vanishing. I would advise you to use volume notation and use respective molar volumes. Btw, you have a typo in the ...
by Bernd
Fri Apr 21, 2023 8:45 pm
Forum: solid-solid phase transformations
Topic: Eigenstrain
Replies: 14
Views: 52358

Re: Eigenstrain

Dear Jane, As far as I know, eigenstrains are always formulated relative to a reference phase which the user has to define in MICRESS. Thus, there is no need to worry about the absolute values. If you do not want to assume isotropic eigenstrain (then you could simply define them by volume), then you...
by Bernd
Thu Apr 20, 2023 5:16 pm
Forum: solid-solid phase transformations
Topic: Eigenstrain
Replies: 14
Views: 52358

Re: Eigenstrain

Hi Jane, I try to answer one by one: 1.) For incorporating concentration dependent eigenstrains you must use "mechano_chemical" as type of mechanical contribution. Then, if you use a database with volume data, you should use "volume" for the notation of eigenstrains, and "database" for "(mechanical ...
by Bernd
Fri Apr 14, 2023 8:37 pm
Forum: solid-solid phase transformations
Topic: austenite to pearlite transformation
Replies: 1
Views: 6176

Re: austenite to pearlite transformation

Dear Vitoria,

I am not an expert of vanadium steels, but I don't see a reason why not...

You may try to do so either fully spatially resolved for a limited number of cementite lamellae, or on the grain length scale by using the "unresolved" effective eutectoid model.

Bernd
by Bernd
Fri Mar 31, 2023 5:10 pm
Forum: Homogenization/heat treatments
Topic: 2 Liquid phases during dissolution
Replies: 3
Views: 11676

Re: 2 Liquid phases during dissolution

Dear Baptiste, The problem you pose definitively is not an easy one. It took me some time to figure out what are the main problems here. Given that this is not a usual case, the usual advice may not work here. Technically speaking, the problems are the strongly "demixing" interaction of the two liqu...
by Bernd
Thu Mar 23, 2023 5:04 pm
Forum: Homogenization/heat treatments
Topic: 2 Liquid phases during dissolution
Replies: 3
Views: 11676

Re: 2 Liquid phases during dissolution

Dear Baptiste, Welcome to the MICRESS Forum! If a phase which is described in a Calphad database has different stability ranges in composition space with miscibility gaps in between, then this is treated as "composition sets" in Thermo-Calc. Essentially, those sets are treated as if they were differ...
by Bernd
Tue Mar 07, 2023 7:56 pm
Forum: solid-solid phase transformations
Topic: stress and strain
Replies: 2
Views: 8237

Re: stress and strain

Dear Shaojielv, There are many possibilities how to get zero values for stress and strain, e.g. if both phases have exactly the same molar volume. But I don't know why the transformation then stopped - perhaps you have done some wrong input when changing to stress coupling, or you are using paramete...
by Bernd
Wed Jan 11, 2023 10:29 pm
Forum: trouble-shooting
Topic: Messages: toolCheckFile & Error in routine 'outDiffKoeff'
Replies: 5
Views: 13730

Re: Messages: toolCheckFile & Error in routine 'outDiffKoeff'

Dear Mauro, Sorry for the late response. I have run your input file and found some problems with the "profile-500.txt"-file which you provided me by PM: The file contains a lot of trailing Tab-characters which gave me input errors. After cleaning the file, everything is running fine. Please start cl...
by Bernd
Fri Dec 23, 2022 4:00 pm
Forum: Announcements
Topic: Merry Christmas and a Happy New Year 2023
Replies: 0
Views: 86191

Merry Christmas and a Happy New Year 2023

Dear all,

The MICRESS team wishes all of you a Merry Christmas and a happy and successful New Year 2023.
by Bernd
Sat Dec 03, 2022 9:28 pm
Forum: trouble-shooting
Topic: Messages: toolCheckFile & Error in routine 'outDiffKoeff'
Replies: 5
Views: 13730

Re: Messages: toolCheckFile & Error in routine 'outDiffKoeff'

Dear Mauro,

Thank you for sending your input files as PM. Unfortunately, the .ges5-file is missing, so that I cannot run it. Please send it.

Bernd