MICRESS Forum

Dear Bernd,

I just came accross one strange problem. Please find the error screen!

Everything can pass, but "segmentation fault" occurs when beginning
the simulation!

The version of MICRESS I used is 5.3 in Linux.

Look forward to your reply!


BG/sunny

Hi, George, Thank you for your information! I am interested in the new feature 'Limits', which should be useful to treat the order-disorder transition and miscibility gap cases. But now, could you show me how to use it in the .dri file? Another issue is about the version of the TQ version in your ne...

Dear Bernd, Thank you for your information. I suppose that when the dG or mu is needed in the simulation TQ can calculate and return the values for MICRESS. Thus, there is no need for MICRESS to consider what kind of models used in thermodynamic databases. Then only phase field, concentration and te...

Hi, Bernd, According to my understanding, the driving force calculation in MICRESS is done from a parallel tangent construction as, dG = f(belta)-f(alpha)-mu*(c(belta)-c(alpha)), and mu is defined as diffusion potential When linking to the real molar Gibbs energy from the CALPHAD-type thermodynamic ...

Thank you so much for your reply. Another question: Does it make some differences between the following two cases in MICRESS simulation? Case 1: Matrix: 1. 0. 0. 0. 1. 0. 0. 0. 1. Precipitate: 1.00907 0. 0. 0. 1.00907 0 0. 0. 1.00907 Case 2: Matrix: 0. 0. 0. 0. 0. 0. 0. 0. 0. Precipitate: 0.00907 0....

Hi, Markus, Thank you for your reply! According to your reply, we should enter 1 for the matrix by default. Thus, I should define my case (3D) in this way: Matrix: 1. 0. 0. 0. 1. 0. 0. 0. 1. Precipitate: 1.907 0. 0. 0. 1.907 0 0. 0. 1.907 because (x(precipitate)-x(matrix))/x(matrix)=0.00907=0.907% f...

Hi, Bernd, I am now simulating the case that one phase precipitates from the matrix phase and the elastic strain is considered. As shown in the following, there are some input for "line". If my understanding is right, "lattice misfit" should be inputed here. However, there exist three definitions of...

Hi, Bernd,

Thank you very much for your reply!

Sunny

Hi, Bernd, I found some errors on the screen (see the attached figure) when I running the program. I used the thermodynamic database in my simulation. And the diffusion coefficients were entered and assumed as composition-independent. Although this error exists, the program continues, but I do not k...

Hi, Bernd, What about the option of "sinus" in "Type of temperature trend"? How to used it? Is it also possible for us to employ the continuous temperature variations in MICRESS, like, Time(s) Cooling rate (K/s) Temperature gradient (K/mm) 0 2.0 100 1 1.0 50 ... ... ... Thank you for your time! Sunny