MICRESS Forum

Dear Bernd, There was a mistake in my python code to calculate the seed density and I have now solved it, which changed the SDD (seed density distribution) as shown in Figure below. Capture.JPG The MICRESS simulation for this seed density activated around 8600 seeds and lead to a finer grain. When I...

Dear Bernd, I miscalculated the factor and hence 30% is wrong. The image below shows by seed density plot and extrapolated values until 0.5µm, as I don't expect particles greater than this to be present. Capture.JPG I have snow several results below showing the activated seeds at different inputs. 1...

Dear Bernd, Thanks a lot for your reply. I completely agree with your reply that larger particles weren't included in TEM, as particles larger than 150nm were seen in the TEM experiments, but were quite hard to characterize the number density and hence were not included. So now I shall extrapolate t...

Dear Bernd, I think there might be a misunderstanding. In my case, the ODS particles are in the range of nanometers (ie. 10-80nm). Therefore, in my simulations, I could see curvature undercooling. So do you think still I need to include the seed density model? Seed number 137 set at time t = 9.31000...

Dear Bernd, I am Venkatesh, also working on the same topic with Moritz. 1. Yes, in our case TiN in ferritic steel is processed via AM. The alloy contains 0.8% of ODS particles and below is the number density from TEM experiments. Radii (nm) Number density(cm-3) 10 3.69861E+15 20 7.92902E+15 30 7.209...

Dear Bernd, I am trying to simulate both equiaxed and columnar grain structures in my simulation for ferritic steel with the ODS system included during the AM solidification process. As a part of my first approach, I tried to simulate the equiaxed structure with the seed-density model and turned out...