Search found 1059 matches

by Bernd
Tue Aug 20, 2019 2:28 pm
Forum: pre-processing
Topic: How grain boundary diffusion works
Replies: 18
Views: 3335

Re: How grain boundary diffusion works

Hi Chamara, That is true. If the "physical" value is already smaller than the bulk value, the scaled one would typically be even smaller. And even this smaller value would only apply to those cells which are exactly in the center of the numerical interface (Φ α =Φ β =0.5) and would be further decrea...
by Bernd
Mon Aug 19, 2019 10:13 pm
Forum: pre-processing
Topic: How grain boundary diffusion works
Replies: 18
Views: 3335

Re: How grain boundary diffusion works

Hi Chamara, not necessarily, because the output of the grain boundary diffusion coefficient shows the additional diffusivity which comes from the effect of the grain boundary. If you have set the parameters correctly, it should have the same sign as the corresponding bulk diffusion term, but it may ...
by Bernd
Fri Aug 09, 2019 1:03 pm
Forum: solidification
Topic: Data for further nucleation
Replies: 51
Views: 3254

Re: Data for further nucleation

I can try to make a fast fix based on the current beta-version (i.e. untested, only Linux) as soon as possible. Would this be helpful?

Bernd
by Bernd
Thu Aug 08, 2019 9:40 pm
Forum: solidification
Topic: Data for further nucleation
Replies: 51
Views: 3254

Re: Data for further nucleation

Hi Chamara, I have checked the example which you have sent me by e-mail, and it is as I feared: There are more issues! That means that the misorientation model will not change to a low-angle grain boundary with this method, or - even worse - will not lead to any defined misorientation state. This is...
by Bernd
Thu Aug 08, 2019 3:59 pm
Forum: solidification
Topic: Data for further nucleation
Replies: 51
Views: 3254

Re: Data for further nucleation

Exactly
by Bernd
Thu Aug 08, 2019 3:12 pm
Forum: solidification
Topic: Data for further nucleation
Replies: 51
Views: 3254

Re: Data for further nucleation

Hi Chamara,

But you know that there will be two grain boundaries at least if you have 3 grains...

Bernd
by Bernd
Thu Aug 08, 2019 12:08 pm
Forum: solidification
Topic: Data for further nucleation
Replies: 51
Views: 3254

Re: Data for further nucleation

Hi Chamara, Oh, I see... In MICRESS, phase 0, which typically was associated with grain 0, has special properties: It is present in the background per default and cannot be anisotropic. This is the reason why grain 0 is not part of the output in .TabO, and why its orientation is put to 90° in the .o...
by Bernd
Wed Aug 07, 2019 12:01 pm
Forum: solidification
Topic: Data for further nucleation
Replies: 51
Views: 3254

Re: Data for further nucleation

Yes, I would say so. Grain 0 is redefined to be fcc, and using "parent_relation" you can set the orientation to the same value of the existing fcc grain.
by Bernd
Tue Aug 06, 2019 4:32 pm
Forum: solidification
Topic: Data for further nucleation
Replies: 51
Views: 3254

Re: Data for further nucleation

Hi Chamara, The principle of switching rest liquids to solid is to nucleate grain 0 again (which normally is the liquid) using the option "add_to_grain". By this procedure, you have the possibility of redefining all properties of grain 0, not only the phase identity. Of course, you always can do tha...
by Bernd
Tue Jul 30, 2019 12:00 am
Forum: solid-solid phase transformations
Topic: Phase Diagram Input for Multi-component Systems with NPLE
Replies: 3
Views: 44

Re: Phase Diagram Input for Multi-component Systems with NPLE

Hi Marko, It does not matter whether you have installed Thermo-Calc and MICRESS on the same computer. If you have installed a MICRESS version with TQ-coupling, the only things you need to do with Thermo-Calc is performing pretests and creating the binary .GES5 files from the database which you need ...