Search found 100 matches

by shaojielv
Fri May 20, 2022 5:50 pm
Forum: recrystallisation/grain growth
Topic: Recrystallization
Replies: 17
Views: 9700

Re: Recrystallization

Dear Bernd, Yes, I am interested in the austenite-ferrite transformation of stored energy, and I also want to do ferrite recrystallization. I will further explain my problem, I am doing austenite-ferrite transformation and recrystallizing ferrite, so when setting up the model I only recrystallize fe...
by shaojielv
Fri May 20, 2022 2:21 pm
Forum: recrystallisation/grain growth
Topic: Recrystallization
Replies: 17
Views: 9700

Re: Recrystallization

Dear Bernd, First of all, thank you for your letter. I understand what you mean. In this case, I have a question about polyphase that I would like to ask you. Based on your answer, I started to simulate the austenite-ferrite transformation, and wanted to recrystallize the ferrite. Regarding the ferr...
by shaojielv
Tue May 17, 2022 4:34 pm
Forum: recrystallisation/grain growth
Topic: Recrystallization
Replies: 17
Views: 9700

Recrystallization

Dear Bernd, I would like to ask some questions about recrystallization. I coupled the thermodynamic database through TQ-interface, and coupled the phase field and concentration, and used the mean_dislocation model, but the simulation shows that the element concentration does not affect the recrystal...
by shaojielv
Fri Apr 29, 2022 2:09 pm
Forum: solid-solid phase transformations
Topic: solid-solid phase transformation
Replies: 2
Views: 1103

Re: solid-solid phase transformation

Dear Bernd You are right, according to your guidance I have modified the way of element allocation, in which the needle-like structure of BCC_A1 can nucleate and grow normally, but the isotropic phase grows extremely slowly, I think this is due to my concern for the third The result is caused by the...
by shaojielv
Thu Apr 28, 2022 2:58 pm
Forum: solid-solid phase transformations
Topic: solid-solid phase transformation
Replies: 2
Views: 1103

solid-solid phase transformation

Dear everyone, I want to simulate the solid state phase transition in Fe-C-Mn ternary alloy, the process is: FCC_A1 transforms into needle-like BCC_B2 (at grain boundaries and bulk) and isotropic FCC_L12 (at three-phase intersection), but this The simulation has not changed. I have sent the specific...
by shaojielv
Sat Apr 16, 2022 2:40 pm
Forum: solid-solid phase transformations
Topic: Ternary system
Replies: 17
Views: 9511

Re: Ternary system

Dear Bernd, I have drawn the phase diagram of Fe-Cu-Ni ternary alloy through ternary phase diagram, and what is shown here is indeed a ternary system. As you said, diffusion is impossible, so I want to form Ni shell through redistribution. If it is convenient for you, I can send you my driver file. ...
by shaojielv
Thu Apr 14, 2022 3:00 pm
Forum: solid-solid phase transformations
Topic: Ternary system
Replies: 17
Views: 9511

Re: Ternary system

Dear Bernd, I am sorry that I did not explain the simulation results in MICRESS. The following diagram shows the concentration distribution of corresponding elements in phase FCC_L12, but it is not the core-shell shape I mentioned in the diagram. The Ni element does not diffuse around Cu and surroun...
by shaojielv
Thu Apr 14, 2022 9:47 am
Forum: solid-solid phase transformations
Topic: Ternary system
Replies: 17
Views: 9511

Re: Ternary system

Dear Bernd, I am conducting phase field simulation of phase transition from BCC_B2 to FCC_L12 in FE_CU_NI ternary alloy through MCRESS. My idea is to make CU gather to the center and make NI diffuse to the outside of CU to form a core-shell structure. The specific schematic diagram is as follows, bu...
by shaojielv
Sun Apr 10, 2022 10:09 am
Forum: solid-solid phase transformations
Topic: Fe_Cu
Replies: 6
Views: 10333

Re: Fe_Cu

Dear Bernd

I think this is not just because of the slow reaction speed. I tested the evolution of time to 3000s, but this is not a normal reaction, but I did not find the cause of the error.

lv
by shaojielv
Fri Apr 08, 2022 1:10 pm
Forum: solid-solid phase transformations
Topic: Fe_Cu
Replies: 6
Views: 10333

Re: Fe_Cu

Dear Bernd,

Yes, the response is so slow that I think there is something wrong with my model, do you think it is my model? If the model is ok I will try it with more time.

lv