Search found 14 matches

by mogeritsch
Thu Apr 02, 2020 9:12 pm
Forum: solid-solid phase transformations
Topic: Ti6Al4V
Replies: 2
Views: 1415

Re: Ti6Al4V

Dear Bernd,

thank you.

Johann
by mogeritsch
Mon Mar 30, 2020 8:05 pm
Forum: solid-solid phase transformations
Topic: Ti6Al4V
Replies: 2
Views: 1415

Ti6Al4V

Dear everyone, my object is the heat treatment of Ti6Al4V martensite microstructure obtained by additive manufacture. During additive manufacture, fine martensite needle-like structures of the alpha phase are created. Depending on the selected heat treatment temperature the martensite structure tran...
by mogeritsch
Sat May 12, 2018 2:41 pm
Forum: pre-processing
Topic: In-file returns strange range of seed radii
Replies: 6
Views: 3336

Re: In-file returns strange range of seed radii

Hello Bernd,

can you give a sample about seed density for the clustering? The first two numbers are clear, the radius and the seed density, but what exactly do I define with the cluster and the cluster density? An example would be helpful.
Many Thanks,

Johann
by mogeritsch
Tue Aug 08, 2017 3:03 pm
Forum: thermodynamics
Topic: thermodynamic questions...
Replies: 3
Views: 3494

Re: thermodynamic questions...

Hi Bernd, by using a database the log-file gives information about linearisation parameters of the phases XXX/YYYY. Some information are clear for me like TO, dG, dS, dH C0 and m. Unfortunately I don't understand the background of dcdT and the interaction matrix. Could you give me a bit more details...
by mogeritsch
Thu Aug 11, 2016 4:24 pm
Forum: solidification
Topic: variable initial concentration
Replies: 1
Views: 1162

variable initial concentration

It is possible to change the concentration between two components within the domain during the simulation like a source or a sink outside the domain?
by mogeritsch
Wed Feb 17, 2016 9:01 am
Forum: solidification
Topic: solidification of a ternary alloy composition
Replies: 11
Views: 4728

Re: solidification of a ternary alloy composition

Dear Bernd,

I see, I was on the wrong track. Now, it is clear for me.

Thank you and best regards,

Johann
by mogeritsch
Mon Feb 15, 2016 12:21 pm
Forum: solidification
Topic: solidification of a ternary alloy composition
Replies: 11
Views: 4728

Re: solidification of a ternary alloy composition

Dear Bernd, I am still not really familiar with the solidification velocity. In the dri.-file, the minimum undercooling is select with deltaT = 10 K, the entropy is deltaS = 1.344 J ∙cm-3 ∙K-1 (from log-file) and the kinetic coefficient µ = 2∙10-2 cm4 ∙J-1∙s-1 (dri.-file). This gives me a velocity o...
by mogeritsch
Wed Dec 02, 2015 9:21 am
Forum: solidification
Topic: solidification of a ternary alloy composition
Replies: 11
Views: 4728

Re: solidification of a ternary alloy composition

Dear Bernd,

thank you.

Johann
by mogeritsch
Tue Dec 01, 2015 2:05 pm
Forum: solidification
Topic: solidification of a ternary alloy composition
Replies: 11
Views: 4728

Re: solidification of a ternary alloy composition

Dear Bernd, the velocity of the solidification front is given by: V=T ̇/GT , with V is the velocity, T ̇ is the cooling rate, and GT the temperature gradient. Further one, the velocity is given by: V=µ∙∆S∙∆T , with µ is the kinetic coefficient, deltaS the entropy, and deltaT the undercooling. In MIC...
by mogeritsch
Tue Sep 22, 2015 2:27 pm
Forum: solidification
Topic: Metastable phase
Replies: 2
Views: 1630

Re: Metastable phase

Dear Bernd,
your answer helps me because we assume that there is no really a peritectic reaction.

Best regard,

Johann