MICRESS Forum

Hi Bernd, thanks again for your helpful and quick reply! The value which we used until now was propably way off (1 cm**4/(Js)), but did not come to our attention until now. The value you mentioned is typical for temperatures below the solidification range. As ThermoCalc does not seem to have the pos...

Hello everyone, I recetly added Zener pinning to one of my simulations. As you know, there are two values required: The Zener pinning pressure and the minimal mobility. For the Zener pinning pressure, there are many literature sources and also suggestions on how to calculate it, so I am fairly certa...

Hello everyone! I recently added grain growth in the solid state to a solidification simulation, which I use to simulate the solidification after the LPBF process. Unfortunately, I currently oberserve grain growth, which leads to very big grains in a matter of microseconds. The simulation already in...

Hello everyone, thank you for your replies and suggestions. I am going to implement them into future attempts. I also already thought about the orientation of the heat source and how I could resemble the temperature conditions. I think it is an interesting idea to turn the simulation, to overcome th...

Hello everyone! I hope everyone had a great start into 2022! I am still working on a model for the solidification in the LPBF process. As the model develops, I want to include one more significant characteristic of real Am processes, which is epitaxial grain growth. What I mean by that is the orient...

Hi Ralph,

thanks for the reply, this is very helpful for understanding the different outputs.

Best regards,

Moritz

Hello everyone, I initially wanted to post a question about differences between the TabK and TabGD output files, regarding the grain size. I then noticed, that the simulation timesteps of the outputs dont match, for example for TabGD the last output is for a simulation time of 0.005 s and in TabK 0....

Hi Bernd, thanks for your reply. As you know, I was busy working on other models and problems. As shown in this post (https://board.micress.de/viewtopic.php?f=9&t=748) my colleagues and I are working on a model for the solidification of an ODS steel. For now, we achieved good results with a simulati...

Hi Bernd, thanks for your reply. This was actually a good idea, to check the inputs again. Somehow they worked for one simulation, but transfered to the other one caused problems. We have now a simulation, where we considered your suggestions and the simulaion is starting to look like we expect it t...

Hi Bernd, thanks for your reply. I obviously left some important information out. We did not use latent heat in our approach. The latent heat effects are included in the temperature profile, which comes from a FEM-model. We tested the application of thermal data on the T002 example, but then changed...