MICRESS Forum

Dear khajezade, Thanks for sending me your input files per PM. I essentially have overlooked the problem in the input syntax of grain boundary diffusion. For activating it you should just use "+b" and not "diagonal +b". The latter is misinterpreted and results in trying to use diffusion data from da...

Dear Taha, Please set the initial temperature to 1740 K, and also raise the temperature range for seed type 1 correspondingly. Then you will get reasonable behavior of the AlSI316L simulation. By the way, you have erased the wrong line in the Numerical Parameters section (it just has no effect becau...

Dear Taha, Welcome to the MICRESS forum! I am currently at the Calphad conference, and have not yet been able to run your input files to know exactly what happens. However, looking through the files, I have seen the following: 1.) You have put the initial temperature for your second simulation much ...

Dear khajezade, I did not take into account that you are currently not using diffusion data from database - thus you will not get the information about grain boundary diffusion in the .diff output like I said. I apologize for the not optimal implementation! To get nevertheless a feeling about the ef...

Dear khajezade, You should define the difference in activation energy instead of the new activation energy (which however would be exactly the same in your specific case...). In principle, the important influence of the grain boundary diffusion is to increase the diffusion coefficient within the int...

Dear Feng, Please excuse my late reply, it seems that the notification function is not working correctly at our side. :( What you refer to is from the old Manual which has not been updated since MICRESS version 6.4. You are right that it is not correct what has been written there. Please note that t...

Dear Sean, I think your approach of comparing the "stability" of the dendrite array before and after full overgrowth of the smaller dendrite is wrong. One should rather focus on the question whether a smaller dendrite can growth side-to-side with a bigger one, even if there are small fluctuations of...

Hi Mauro, If you mean with "200 data points" that you have 200 time steps with corresponding 200 temperature profiles, then you are right, and unfortunately there is currently no other way how to input that into the driving file. Do you have a proposal how we could simplify this procedure? If we wou...

Hi Sean, In principle, the unit cell approach with KGT-calibrated interface mobility is a good basis for investigation of the PDAS. However, your conclusion, that the invariance of the tip temperature with changing PDAS (i.e. domain size) would indicate the stable PDAS value, is wrong. The tip under...

Hi Sean, it seems you applied the factor of 16 also to the kinetic anisotropy coefficient, which is not correct: It should be only the static one! Thus, you are missing kinetic anisotropy. This, although physically viable, is not useful with phase-field simulations which are not extremely fine resol...