Search found 8 matches

by mmendes
Tue Jul 11, 2017 5:38 pm
Forum: phase-field model
Topic: Interfacial energy, morphology and triple junction angle
Replies: 18
Views: 4645

Re: Interfacial energy, morphology and triple junction angle

Thanks for answering Bernd! I will contact Georg for the quote. Although you are not so experienced in Widmanstatten microstructures, do you think I will be able to easily simulate the plate-like morphology using the elastic module package in Micress? This is the paper I meant: http://www.sciencedir...
by mmendes
Tue Jul 11, 2017 12:28 am
Forum: phase-field model
Topic: Interfacial energy, morphology and triple junction angle
Replies: 18
Views: 4645

Re: Interfacial energy, morphology and triple junction angle

Hi Bernd, Is it possible to use the elastic strain anisotropy instead of interfacial energy anisotropy to simulate Widmanstatten microstructure in Micress? I read a paper in which the former parameter was used and the result is way more realistic than when using the later one. If that is possible, d...
by mmendes
Mon Feb 13, 2017 7:46 pm
Forum: phase-field model
Topic: Interfacial energy, morphology and triple junction angle
Replies: 18
Views: 4645

Re: Interfacial energy, morphology and triple junction angle

Dear Bernd, I tried to set the parent relation to 0° as you suggested, but still without success. The alpha grains grow faster into my gamma grain 2, but no needle shape is observed (like when I set -90°). :| Strange that, I just changed that parameter compared to the last simulation image I posted,...
by mmendes
Sun Feb 12, 2017 2:10 am
Forum: phase-field model
Topic: Interfacial energy, morphology and triple junction angle
Replies: 18
Views: 4645

Re: Interfacial energy, morphology and triple junction angle

Dear Bernd, Thanks again for your help! I am still struggling to get the needle shape. I have been changing parameters, but many things are still unclear to me. I´ve read the manual and also looked for answers here in the forum, but I still do not fully undertand some behaviors. Therefore, I would h...
by mmendes
Thu Feb 02, 2017 10:25 pm
Forum: phase-field model
Topic: Interfacial energy, morphology and triple junction angle
Replies: 18
Views: 4645

Re: Interfacial energy, morphology and triple junction angle

Dear Bernd, Thanks for answering. 1) It is because the orientation relationship between austenite grains must vary. So if the alpha grain cross the triple junction I will have the same alpha grain (with the same orientation) along 2 or 3 austenite grain boundaries which have different misorientation...
by mmendes
Thu Feb 02, 2017 3:39 am
Forum: phase-field model
Topic: Interfacial energy, morphology and triple junction angle
Replies: 18
Views: 4645

Re: Interfacial energy, morphology and triple junction angle

Hi Bernd, Thank you for helping. By increasing the initial radius I could solve that problem ;) I would like to ask you some other questions: 1) It is possible to make the nuclei which appear in the triple junction to have different orientations along the 3 grain boundaries when it grows? This way m...
by mmendes
Tue Jan 10, 2017 1:32 am
Forum: phase-field model
Topic: Interfacial energy, morphology and triple junction angle
Replies: 18
Views: 4645

Re: Interfacial energy, morphology and triple junction angle

Dear Bernd, First of all, thank you so much for you prompt and clear reply! I checked the .log file of my simulation in the "wetting scenario", and the alpha grains do reach a full size. However, by checking the .korn file I saw that the grains touch each other before the full size to be reached. So...
by mmendes
Fri Jan 06, 2017 7:54 pm
Forum: phase-field model
Topic: Interfacial energy, morphology and triple junction angle
Replies: 18
Views: 4645

Re: Interfacial energy, morphology and triple junction angle

Hi there, I am new in the group and I am trying to simulate allotriomorphic ferrite along austenite grain boundaries. I have tried two paths: 1st) using the categorization of alpha grains (first image) and 2nd) decreasing the interfacial energy in order to get a wetting scenario (second image). With...