Hi Bernd,
how can we defined a analytical curvature if you want to use seed_density model with 1 seed class with 1nm radius?
BR
Chamara
Search found 215 matches
- Fri May 08, 2020 4:04 pm
- Forum: solidification
- Topic: Data for further nucleation
- Replies: 64
- Views: 1343460
- Tue May 05, 2020 10:19 am
- Forum: solidification
- Topic: Data for further nucleation
- Replies: 64
- Views: 1343460
Re: Data for further nucleation
Hi Bernd,
Can the analytical_curvature option be used with the interface nucleation? how does it work in this scenario?
BR
Chamara
Can the analytical_curvature option be used with the interface nucleation? how does it work in this scenario?
BR
Chamara
- Tue Mar 17, 2020 8:16 am
- Forum: solid-solid phase transformations
- Topic: Modification of chemical potential for elements at GB
- Replies: 3
- Views: 4397
Re: Modification of chemical potential for elements at GB
Hi Bernd,
found this article regarding such work using PF https://www-sciencedirect-com.ezproxy.s ... 5620300240
found this article regarding such work using PF https://www-sciencedirect-com.ezproxy.s ... 5620300240
- Sat Mar 14, 2020 4:23 pm
- Forum: solid-solid phase transformations
- Topic: Modification of chemical potential for elements at GB
- Replies: 3
- Views: 4397
Modification of chemical potential for elements at GB
Hi,
Is there a way to modify chemical potential of an element at a grain boundary in MICRESS?
BR
Chamara
Is there a way to modify chemical potential of an element at a grain boundary in MICRESS?
BR
Chamara
- Wed Jan 08, 2020 3:24 am
- Forum: solidification
- Topic: Simulation of solidification of Gamma prime alloy during SLM process
- Replies: 43
- Views: 131095
Re: Simulation of solidification of Gamma prime alloy during SLM process
Hi Bernd In MC phase, apart from C, Cr and Al composition reach values that is more than 10 times its usual values. Hf, Ta and Ti do not fluctuate. However, in fcc phase almost all the element fluctuate. see the attached image. in the image I have defined isolines with values -0.01 and 50 at%. # 0 -...
- Tue Jan 07, 2020 4:19 pm
- Forum: solidification
- Topic: Simulation of solidification of Gamma prime alloy during SLM process
- Replies: 43
- Views: 131095
Re: Simulation of solidification of Gamma prime alloy during SLM process
I tried limiting C in MC between 30 and 50 at%. Still I see the composition fluctuate above 50%. I get error =10209 indicating that limit criteria has been violated (if I am correct). also I get error = 30201. Do I need to limit some other elements also? I see negative C nd Hf compositions in some l...
- Tue Jan 07, 2020 9:03 am
- Forum: solidification
- Topic: Simulation of solidification of Gamma prime alloy during SLM process
- Replies: 43
- Views: 131095
Re: Simulation of solidification of Gamma prime alloy during SLM process
Hi Bernd, When I look at the composition (in at%) in MC and FCC_A1, I Hf and C composition fluctuating a lot. especially I get negative compositions in FCC_A1. I tried first defining limits (min 0, max 50) for C composition in both MC and fcc phase. But I see still C composition goes to negative val...
- Mon Jan 06, 2020 9:09 am
- Forum: solidification
- Topic: Simulation of solidification of Gamma prime alloy during SLM process
- Replies: 43
- Views: 131095
Re: Simulation of solidification of Gamma prime alloy during SLM process
Dear Bernd,
Thanks for the reply. what cause to get the Error=3 and Error =1. Is this specific for problems in .GES file?
Thanks for the reply. what cause to get the Error=3 and Error =1. Is this specific for problems in .GES file?
- Sat Dec 21, 2019 4:54 am
- Forum: solidification
- Topic: Simulation of solidification of Gamma prime alloy during SLM process
- Replies: 43
- Views: 131095
Re: Simulation of solidification of Gamma prime alloy during SLM process
Dear Bernd, Now I am doing the same simulation using TTNI8/MOBNI1. This is because TCNI8 did not give good equilibrium description of the alloy. in TTNI8 i have 1. FCC_A1 (gamma), 2. FCC_A1#2(MC) 3. GAMMA_PRIME. during the simulation I get error=3 and error=1611. they come during relinearisation. Th...
- Tue Aug 20, 2019 11:29 am
- Forum: pre-processing
- Topic: How grain boundary diffusion works
- Replies: 18
- Views: 22973
Re: How grain boundary diffusion works
Yes. the value that I get is smaller than the bulk value. but has the same sign.
In practice should't it be higher than the bulk value?
In practice should't it be higher than the bulk value?