MICRESS Forum

Dear Jane,

I have doubts whether it can work like you want: If you are still in the two-phase region (austenite + ferrite), and ferrite does not grow, how can you get stable martensite then?

Bernd

Dear rookie, if you still have trouble with version incompatibility, our recommendation is to use the keyword "diagonal" in the section for definition of stoichiometric phases. This switches to diagonal extrapolation for redistribution (instead of default multi-binary extrapolation) which is general...

Dear Jane, Obviously, you are using a "phase switch" by add_to_grain with sub-option "parent_grain" in order to mimic something like a martensite transformation. That is, you are not using normal nucleation, but change the phase of an already existing grain of phase 2. After that, this new grain wit...

Dear rookie, Welcome to the MICRESS forum! A segmentation fault normally should not occur even with wrong input data. However it is close to impossible to catch up all types of wrong or inconsistent input, so this could be one possible reason. Another reason could be the incompatibility between ther...

Dear all,

Our new paper on simulation of additive manufacturing (L-PBF) of the Ni-base-alloy ABD900 is now available online:

Bernd Böttger and Markus Apel
On the choice of thermal boundary conditions for microstructure modelling of additive processes
Procedia CIRP. Volume: 111. 2022

Bernd

Dear shaojielv, The most probable reason for the differences is the altered equilibrium temperature: By reducing the amount of alloying elements, the equilibrium temperature is increased, leading to a higher undercooling/driving force and hence to a faster transformation rate. This in turn leads to ...

Sorry, shaojielv,

we need more information to answer this question...

Best regards
Bernd

Dear Ahmet, I am not sure whether "Morphology Analysis" in DP_MICRESS can help you. It can be used for identifying and counting closed regions of a MICRESS output which are characterized by an interval of the field value (closed isolines). The grain number typically can be taken from .TabK or .TabGD...

Dear all, Our first advanced MICRESS Training on simulation of additive processes MICRESS Advanced Training Course for SLM and Additive Manufacturing Application, Autumn 2022 is scheduled for Sept. 13th to Sept. 15th, 2022. We will give profound information on techniques for efficiently simulating a...

Dear Ahmet, Sorry for my late answer! What you are doing is correct. Using paratq was problematic due to the triple junctions: When using paratq this option must be used for all interfaces, otherwise there is a conflict of non-matching phase compositions. The reason is that paratq uses the Thermo-Ca...