MICRESS Forum

Dear forum members,

We wish you a Merry Cristmas and a successful year 2009!

The MICRESS team

Dear Qiang, Excuse me for not answering before! The static anisotropy coefficient which you find in the AlCu examples correspond to the "effective" interfacial energy or interface stiffness. In the Acta Materialia paper this would correspond to sigma^*_alpha,beta in Eq. (18) (if the system were hexa...

Dear Raghav, I tried to upload your images, and for me it worked! I hope tis ok for you that I put your question to the forum, if not I take it out again! I try to undestand what you did there - I guess it is fcc growing into the melt (and not bcc) inside a temperature gradient. You are changing two...

Hello, I got the following message from Raghav: Hello Dear Mr. Bernd, I tried to upload the attatchment in Micress forum but i wasn't successful. But i have the questions for alloy Stabilor G with ref. to the role of kin. coeff. in the simulation results that i have in the file. Schönes Wochenende R...

Dear Raghav, "korn" is german and means "grain". The .korn file is a graphical output containing the numbers which are assigned to grains in a consecutive manner when they are defined in the initial grain structure or nucleated during runtime. The grain number is not a physical property, but allows ...

Hi Antoine, of course there is no general rule. If I start a new calculation in the field of solidification of metals, I start trying with about the following values: interface mobility (cm4/(Js): - solid liquid interface for solid solution phase (e.g. fcc-liq): 0.1-0.01 - solid-liquid interface for...

Hi Antoine, I did not say that one "should" use very high resolution and high interface mobilities! I was just stating that if we could afford a very high resolution we would just have to set the mobility high enough and everything would be fine. But in practically all cases we cannot afford such a ...

Hi Antoine, If latent heat is used in a 2D MICRESS simulation, a 3D correction may be necessary, depending on the symmetry of the simulation domain. If all three spacial directions are equivalent like in equiaxed solidification, the 2D shape corresponds to a projection of the 3D structure to the 2D ...

Hi Antoine,

Of course, you are right, it was a misprint, the average solutal undercooling is decreased!

Sorry for that...

Bernd

Dear Raghav, This type of errors occur if there is a convergence problem in the calculation of the quasi-equilibrium – in your case between the phases 0 and 2. It can happen for example if the system is very far from local equilibrium and ranges in the thermodynamic database are accessed which are n...