In the fast-evolving world of metallurgy and materials science, accurate microstructure prediction is critical for optimizing industrial processes like hot rolling, forging, and heat treatment. DIGIMU® 5.1, the latest release from Transvalor, introduces innovative features that enhance grain evolution modeling, solute drag effects, and multi-pass deformation simulations, making it an indispensable tool for researchers and engineers.
Whether you are working with austenitic steels, superalloys, or zirconium-based alloys, DIGIMU® 5.1 provides unprecedented accuracy, efficiency, and flexibility in microstructure simulation. In this article you will explore the key updates, new material models, Python preprocessing tools, and practical applications of DIGIMU® 5.1.
One of the most significant upgrades in DIGIMU® 5.1 is the implementation of a solute drag model, which improves the prediction of the microstructure in grain growth and recrystallization of some materials in a more accurate way. This is particularly useful for:
Inconel 718 material file has been updated in DIGIMU® 5.1 to deliver more accurate resultas higher strain rates (up to 50s⁻¹), making it ideal for high-speed industrial processes like:
Additionally, the static recrystallization (SRX) model has been refined, allowing a better prediction of microstructure evolution in sites of low deformation or temperatures; a crucial factor in heat treatment and forging simulation.
DIGIMU® 5.1 introduces a new A286 material file, a high-strength, corrosion-resistant superalloy used in the aerospace and energy sectors. This enables DIGIMU® simulations of thermomechanical processes involving this alloy. The material file has been developed and tested following our standard identification methodology, ensuring accurate microstructure predictions across a wide range of temperatures and strain rates.
DIGIMU® 5.1 includes critical bug fixes that enhance simulation reliability, including:
DIGIMU® 5.1 introduces new powerful Python-based preprocessing tools that automate and simplify simulation setup, data import, and post-processing. Here’s how they help:
For users using FORGE® for thermomechanical simulations, DIGIMU® 5.1 now offers a direct import tool that:
This functionality is particularly well suited for multi-pass hot rolling simulations, where it enables accurate tracking of microstructural evolution across successive deformation steps. It is also highly relevant for cogging and forging processes, especially when strain rates vary significantly, allowing for more precise analysis and optimization of complex thermomechanical conditions.
Instead of manually analyzing material files, DIGIMU® 5.1’s Plot Material File tool automatically generates plots for selected material parameters from a given material file.
This functionality significantly saves time in material characterization by automating complex calculations, while also improving collaboration through clear and easily interpretable visual data. In addition, it enables the automated calculation and visualization of key parameters such as nucleus radii and critical strain rate, ensuring more efficient and reliable analysis.
For researchers studying alloys with particular distribution of second phase particles (SPP), DIGIMU® 5.1 allows manual placement of those in polycrystal simulations. They can easily be modified by editing files related to the polycrystal generator integrated in DIGIMU®. Some of the many applications are:
- Metal matrix composites (MMCs)
- Precipitation-hardened alloys
- Experimental microstructure replication
Instead of relying on random SPP generation, DIGIMU® 5.1 now allows importing real microstructures that include SPP by using a binary PNG image of the segmented SPP.
Use case: Replicating experimental micrographs for more realistic simulations.
Have a partially recrystallized microstructure from a previous simulation? DIGIMU® 5.1 lets you extract grain boundaries (GB) & dislocation density (DD) from images. Then, you can easily resize and reimport it into new simulations, while maintaining accuracy with minimal diffusion loss. Ideal for:
To demonstrate DIGIMU® 5.1’s capabilities, let’s look at a case study conducted in collaboration with Ugitech:
Simulation Setup:
This case highlights several key findings, including the accurate prediction of grain size evolution, expressed through equivalent circle diameter, as well as a strong correlation between simulated dynamic recrystallization (DRX) behavior and experimental observations. These capabilities make the approach particularly valuable for materials scientists and researchers investigating grain growth, recrystallization, and phase transformations. It is equally beneficial for metallurgists and process engineers aiming to optimize hot rolling, forging, and heat treatment processes. In addition, industries such as aerospace and automotive can leverage these insights to develop high-performance alloys like Inconel, A286, and titanium alloys, while the nuclear and energy sectors can apply them to model zirconium-based materials and radiation-resistant components.
DIGIMU® 5.1 is designed for:
DIGIMU® 5.1 represents a major leap forward in microstructure simulation, offering:
✔ Enhanced solute drag modeling for better alloy predictions in 304L and 316L.
✔ Support for higher strain rates in Inconel 718 simulations up to 50s-1.
✔ New material file for A286 iron-based superalloy.
✔ Powerful Python tools for automation and workflow efficiency.
✔ Real-world validation in multi-pass hot rolling.
Ready to try DIGIMU® 5.1?