How to determine k,n, in the JMAK model through cct diagram and TT diagram ,is it necessary to do thermal simulation experiment?
To briefly discuss, I'd like to share a research article that has undergone a comprehensive review by the researcher, similar to above question:
Article The Johnson-Mehl-Avrami-Kolmogorov model: A brief review (*)
Now let me to write a brief response to your question now. The JMAK (Johnson-Mehl-Avrami-Kolmogorov) model is a mathematical model that describes the kinetics of phase transformations in materials. It is a non-isothermal model, which means that it takes into account the effect of cooling rate on the transformation kinetics. To determine the JMAK parameters for HSLA steel, you can use the following steps:
It is important to note that the JMAK parameters are dependent on the chemical composition and microstructure of the HSLA steel. Therefore, it is necessary to conduct CCT and TTT diagram experiments on the specific HSLA steel that you are interested in. It is also important to note that the JMAK parameters can be determined from thermal simulation experiments. Thermal simulation experiments can be used to predict the CCT and TTT diagrams for a given HSLA steel. The JMAK parameters can then be determined from the predicted CCT and TTT diagrams.
Some of YT videos, not related to your question but for better understanding of the materials are given below:
- Microstructure Characterization and Post-Heat Treatment Design for High-Strength Low-Alloy Steels https://www.youtube.com/watch?v=-1E-JrvjpL0&ab_channel=ASMInternational
- Micromechanical modelling of cracked welded joints made of HSLA steel https://www.youtube.com/watch?v=7nDHqBzleQs&ab_channel=EuropeanStructuralIntegritySociety
If you still have issues, discuss with me on WA: Https://wa.me/+923440907874
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Materials Science
- Materials
- Inorganic Materials
- Metals
- Alloys
- Steel