Search found 196 matches

by CharMIC
Tue Aug 20, 2019 11:29 am
Forum: pre-processing
Topic: How grain boundary diffusion works
Replies: 18
Views: 3851

Re: How grain boundary diffusion works

Yes. the value that I get is smaller than the bulk value. but has the same sign.

In practice should't it be higher than the bulk value?
by CharMIC
Fri Aug 16, 2019 12:41 pm
Forum: pre-processing
Topic: How grain boundary diffusion works
Replies: 18
Views: 3851

Re: How grain boundary diffusion works

Hi Bernd

when you have set the parameters correctly, the D_GB physical out put in .diff file should be larger than the bulk diffusion coefficient value ?
by CharMIC
Fri Aug 09, 2019 1:15 pm
Forum: solidification
Topic: Data for further nucleation
Replies: 51
Views: 4418

Re: Data for further nucleation

that would be OK, I think. we can give it a try
by CharMIC
Fri Aug 09, 2019 8:19 am
Forum: solidification
Topic: Data for further nucleation
Replies: 51
Views: 4418

Re: Data for further nucleation

Ahh.. Thats a problem for me then. :(

Will it take few months to fix it?
by CharMIC
Thu Aug 08, 2019 3:30 pm
Forum: solidification
Topic: Data for further nucleation
Replies: 51
Views: 4418

Re: Data for further nucleation

But since the boundary create between the solid phase and "switched-solid" phase will be a boundary with 0 degree misorientation. right?

So there will only be one grain boundary with misorienation. ?
by CharMIC
Thu Aug 08, 2019 1:24 pm
Forum: solidification
Topic: Data for further nucleation
Replies: 51
Views: 4418

Re: Data for further nucleation

Hi Bernd, I will send the files to you. In my simulation I have two gamma seed types with two orientation. during the solidification it will create a grain boundary. Once after switching my intention is only to have one grain boundary. So I want to make remaining liquid orientations to be same orien...
by CharMIC
Thu Aug 08, 2019 8:30 am
Forum: solidification
Topic: Data for further nucleation
Replies: 51
Views: 4418

Re: Data for further nucleation

Hi Bernd, It did not seems to work as expected. The switched grains still have the orientation of the liquid phase. then I tried changing the reference phase to solid phase (1) and substrate phase to liquid (0). There also switched grains have orientation of liquid phase. in both cases I used "paren...
by CharMIC
Tue Aug 06, 2019 8:41 pm
Forum: solidification
Topic: Data for further nucleation
Replies: 51
Views: 4418

Re: Data for further nucleation

thanks Bernd. So is this the correct way of defining?
by CharMIC
Tue Aug 06, 2019 9:31 am
Forum: solidification
Topic: Data for further nucleation
Replies: 51
Views: 4418

Re: Data for further nucleation

Hi Bernd, when you switch the remaining liquid in a simulation to a solid phase (using nucleation at interface of the solid phase) is there a way to set the orientation of the newly created solid phase to take the same orientation as the parent solid phase orientation? I do not want to create and in...
by CharMIC
Mon Jul 29, 2019 1:49 pm
Forum: solidification
Topic: Simulation of solidification of Gamma prime alloy during SLM process
Replies: 31
Views: 1367

Re: Simulation of solidification of Gamma prime alloy during SLM process

Hi Bernd, In my simulations I mainly get error to wards the end of the simulation where small amount of Liquid (>0.02%) is present. So I did some single phase equilibrium calculations with thermo-calc. considering the liquid composition. What I see is depend up on the temperature, major constituents...