Heat Evolution Analysis via Thermography for Mapping of Plasticity

Objective

The design of safer, lighter and more durable components is critical in aerospace, automotive and energy sectors, where structural failure entails high economic and societal costs. Meeting these demands requires advanced methods to understand how materials dissipate or store energy during plastic deformation, as this process governs mechanical performance, durability and resource efficiency. HEATMaP (Heat Evolution Analysis via Thermography for Mapping of Plasticity) addresses this challenge by investigating the Taylor–Quinney coefficient (TQC), a key indicator of how plastic work is partitioned between heat and stored energy. Despite its importance, TQC remains poorly understood, particularly under cyclic and non-adiabatic conditions. Conventional methods lack the resolution to capture the localised processes that govern heat dissipation, leaving a major gap in predicting material behaviour. HEATMaP combines high-resolution infrared thermography (IRT) with microscopy and modelling to resolve heat generation at the mesoscale. By employing ultra-thin mini-specimens and developing AI-based post-processing, the project will deliver unprecedented thermal resolution linked to dislocation substructures. Outcomes include the first systematic open-access database of TQC evolution across alloys and loading modes, and an open-source software tool for thermography-based characterisation. The fellowship ensures strong two-way knowledge transfer: the host contributes expertise in mesoscale plasticity modelling, while the researcher brings advanced experience in fatigue testing, IRT and digital image correlation. This synergy guarantees scientific advances, industrial innovation and career training. HEATMaP is timely. By reducing characterisation costs, promoting IRT-based standards and enabling better material design, the project will support progress towards sustainable energy and engineering.