Empty Simulation Name: Please specify a simulation name in the driving File
Empty Simulation Name: Please specify a simulation name in the driving File
Hello, I'm a new user of MICRESS. I encountered a problem when I first tried to learn the case. I would like to ask: When I tried to start the driving file named "A001_Delta_Gamma" in the MICRESS software, the simulation calculation could not be carried out. A dialog box popped up saying "Empty Simulation Name: Please specify a simulation name in the driving File". How can I solve this problem?
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Re: Empty Simulation Name: Please specify a simulation name in the driving File
Hi Yimi Rui,
welcome to the MICRESS forum!
Can you tell us which version of MICpad on which operation system you use?
I tested with 7.0 and 7.3 on Windows 11 and it works fine.
Best,
Ralph
welcome to the MICRESS forum!
Can you tell us which version of MICpad on which operation system you use?
I tested with 7.0 and 7.3 on Windows 11 and it works fine.
Best,
Ralph
Re: Empty Simulation Name: Please specify a simulation name in the driving File
Hello Ralph! Thank you very much for your response! I am using the MICpad with version 6.402 on Windows 7.
Re: Empty Simulation Name: Please specify a simulation name in the driving File
Hi Yimi Rui,
sorry. MICpad 6.402 is not able to understand driving files of MICRESS 7.0.
We restructured the driving file with version 7.0.
You can download a new MICpad from our website www.micress.de.
Best,
Ralph
sorry. MICpad 6.402 is not able to understand driving files of MICRESS 7.0.
We restructured the driving file with version 7.0.
You can download a new MICpad from our website www.micress.de.
Best,
Ralph
Re: Empty Simulation Name: Please specify a simulation name in the driving File
Hi, Ralph，once again, thank you so much for your meticulous explanation! I’m truly hoping to humbly consult you on a couple more questions. Based on the prior research outcomes of our research group, our focus has mainly been on the study of copper ternary alloys. It was observed that precipitates within the copper matrix exhibit cubic and spherical morphologies, with the morphological differences stemming from the competitive relationship between the interfacial energy and elastic strain energy between precipitates and the copper matrix.
My first question is: since elastic strain energy is an atomic-scale parameter, how should we configure parameters related to elastic strain energy in MICRESS?
My second question: for follow-up research, I plan to introduce dislocations during the growth of precipitates to explore their interaction. Would introducing dislocations necessitate incorporating additional programs into MICRESS?
My first question is: since elastic strain energy is an atomic-scale parameter, how should we configure parameters related to elastic strain energy in MICRESS?
My second question: for follow-up research, I plan to introduce dislocations during the growth of precipitates to explore their interaction. Would introducing dislocations necessitate incorporating additional programs into MICRESS?
Re: Empty Simulation Name: Please specify a simulation name in the driving File
Hi, Ralph，once again, thank you so much for your meticulous explanation! I’m truly hoping to humbly consult you on a couple more questions. Based on the prior research outcomes of our research group, our focus has mainly been on the study of copper ternary alloys. It was observed that precipitates within the copper matrix exhibit cubic and spherical morphologies, with the morphological differences stemming from the competitive relationship between the interfacial energy and elastic strain energy between precipitates and the copper matrix.
My first question is: since elastic strain energy is an atomic-scale parameter, how should we configure parameters related to elastic strain energy in MICRESS?
My second question is: for follow-up research, I plan to integrate dislocations during the growth of precipitates to explore their interaction. Would integrating dislocations necessitate incorporating additional programs into MICRESS?
My first question is: since elastic strain energy is an atomic-scale parameter, how should we configure parameters related to elastic strain energy in MICRESS?
My second question is: for follow-up research, I plan to integrate dislocations during the growth of precipitates to explore their interaction. Would integrating dislocations necessitate incorporating additional programs into MICRESS?
Re: Empty Simulation Name: Please specify a simulation name in the driving File
Hi yimi_rui,
I want to take over from Ralph because my recent work with MICRESS is closer to your current questions.
I am not really an expert with precipitations in Cu-alloys, but from your description it appears that the formation of cubic vs. spherical particles could be similar to γ'-precipitation in Ni-based alloys. To explain these effects, elastic stress due to different eigenstrains of the two phases need to be considered.
The answer to your first question is relatively simple: In addition to concentration coupling, you need to activate stress coupling in MICRESS. Then, you will be asked to provide data on eigenstrain and elastic constants. If the database you are using provides volume data, and the involved phases are cubic (fcc-Cu at least is definitively cubic), then you can use volume data for automatically calculating eigenstrains. Otherwise, eigenstrains can be defined in form of a matrix, relative to the reference phase (fcc). As examples, you can refer to A016_NiAlMo_Cubic_Precipitate_3D.dri or A014_CMSX4_Rafting.dri, which both can be found in the Application_Examples folder of your installation.
The second question is more complicated. Dislocations can be taken into account for different purposes in MICRESS (recrystallization, pipe diffusion, etc.). What you might be interested in is the effect of dislocations on the eigenstrain, i.e. the plasticity effects on the shape of your precipitations. In the current MICRESS version, there is only the possibility to take this into account by manual correction of the eigenstrains. When reading eigenstrains from database via volume data, this can be done by giving a correction factor on the molar volume for the matrix. However, in future versions there will be access to a simple plasticity model which provides an average description of the effects of dislocations on the eigenstrain in each lattice direction, derived by a stress-dependent formation rate of dislocations. This model I developed recently for description of plastic rafting effects. The results are promising, but the model was not sufficiently tested yet do be integrated already into MICRESS version7.3.
I hope this answer gives you a first orientation. If you have further questions on this, please open a new thread in the "solid-solid phase transformations" board of the MICRESS Forum (to keep some order).
Best wishes
Bernd
I want to take over from Ralph because my recent work with MICRESS is closer to your current questions.
I am not really an expert with precipitations in Cu-alloys, but from your description it appears that the formation of cubic vs. spherical particles could be similar to γ'-precipitation in Ni-based alloys. To explain these effects, elastic stress due to different eigenstrains of the two phases need to be considered.
The answer to your first question is relatively simple: In addition to concentration coupling, you need to activate stress coupling in MICRESS. Then, you will be asked to provide data on eigenstrain and elastic constants. If the database you are using provides volume data, and the involved phases are cubic (fcc-Cu at least is definitively cubic), then you can use volume data for automatically calculating eigenstrains. Otherwise, eigenstrains can be defined in form of a matrix, relative to the reference phase (fcc). As examples, you can refer to A016_NiAlMo_Cubic_Precipitate_3D.dri or A014_CMSX4_Rafting.dri, which both can be found in the Application_Examples folder of your installation.
The second question is more complicated. Dislocations can be taken into account for different purposes in MICRESS (recrystallization, pipe diffusion, etc.). What you might be interested in is the effect of dislocations on the eigenstrain, i.e. the plasticity effects on the shape of your precipitations. In the current MICRESS version, there is only the possibility to take this into account by manual correction of the eigenstrains. When reading eigenstrains from database via volume data, this can be done by giving a correction factor on the molar volume for the matrix. However, in future versions there will be access to a simple plasticity model which provides an average description of the effects of dislocations on the eigenstrain in each lattice direction, derived by a stress-dependent formation rate of dislocations. This model I developed recently for description of plastic rafting effects. The results are promising, but the model was not sufficiently tested yet do be integrated already into MICRESS version7.3.
I hope this answer gives you a first orientation. If you have further questions on this, please open a new thread in the "solid-solid phase transformations" board of the MICRESS Forum (to keep some order).
Best wishes
Bernd