> For the complete documentation index, see [llms.txt](https://dante-solutions-inc.gitbook.io/dante-6.3-help-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dante-solutions-inc.gitbook.io/dante-6.3-help-documentation/introduction-2/ttt-fit.md).

# TTT Fit

<figure><img src="https://3062023715-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0UQEr9tolIKQwZXdPc9a%2Fuploads%2FasAybqsilvDXWRPBcmAe%2FTTTFit_256.png?alt=media&amp;token=4e627dec-43a2-484e-9bae-ecf79043a3a8" alt=""><figcaption></figcaption></figure>

The TTT Fit utility is another fitting utility used to fit for the diffusive phase transformation kinetics to the DANTE models using TTT curves. The TTT Curves can be generated from 3rd party software, or from experimental data.

## Use Case

Given the chemical composition from the experimental data file, the TTT Fit utility can fit for the kinetics of any phases. In this case, the experimental data was generated from the JMatPro software for ferrite.

![](https://3062023715-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0UQEr9tolIKQwZXdPc9a%2Fuploads%2Fgit-blob-5b44a85dc54dedcc763e44fe960dd9eafa213c37%2FJMatPro.png?alt=media)

![](https://3062023715-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0UQEr9tolIKQwZXdPc9a%2Fuploads%2Fgit-blob-c60e01c9e2e9c5a44839e79047c448e6cf392c87%2FChem_Comp.png?alt=media)

The fitted plot can be seen below. Increasing the number of loops could possible increase the quality of the fit. The TTT Fit utility tool interpolates for the 1%, 10%, 20%, ... 99% fit.

![](https://3062023715-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0UQEr9tolIKQwZXdPc9a%2Fuploads%2Fgit-blob-cd4f153c5f919462b97ad09588548e47d7d26217%2FJMatPro_Fit.png?alt=media)