Parent grain reconstruction from partially or fully transformed microstructures in MTEX.

Area of Science:

• Materials Science
• Crystallography
• Computational Materials Science

Background:

• Parent grain reconstruction is crucial for understanding material behavior.
• Existing methods often lack versatility across different crystal symmetries and transformation types.
• Advanced analysis of phase transformations and variants requires robust computational tools.

Purpose of the Study:

• To introduce a versatile, generic framework for parent grain reconstruction.
• To extend reconstruction capabilities to all parent-child crystal symmetry combinations.
• To facilitate in-depth variant analysis for materials undergoing phase transformations.

Main Methods:

• Integration of a generic framework into the MTEX open-source crystallographic toolbox.
• Development of universally applicable parent grain reconstruction methods.
• Utilizing the ORTools add-on library for advanced orientation relationship and variant analysis.

Main Results:

• Demonstrated a versatile framework applicable to diverse parent-child crystal symmetry combinations.
• Successfully applied the framework to three distinct material systems: lath martensitic steel, Ti alloy, and TRIP steel.
• Showcased programmatic modification of workflows for user-specific applications.

Conclusions:

• The developed framework significantly enhances capabilities for parent grain reconstruction and variant analysis.
• The tool's versatility and applicability across multiple material systems are validated.
• MTEX and ORTools provide a powerful platform for advanced crystallographic studies in materials science.