In situ monitoring of the annealing process using Spatially Resolved Acoustic Spectroscopy

Materialia 2026 Open access

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Authors: Carolina Guerra, Wenqi Li, Rafael Fuentes-Domínguez, Peng Jin, Arthur Ford, Rikesh Patel, Matt Clark, Richard J. Smith
DOI: 10.1016/j.mtla.2026.102675
Cited by: 0
References: 12

Abstract

Annealing heat treatments lead to microstructural transformation, but such transformations have rarely been observed in situ. Spatially Resolved Acoustic Spectroscopy is a non-destructive technique for imaging microstructure, which is fast enough to image dynamic changes in the sample. This study demonstrates the in situ monitoring of the annealing process that includes the recovery, recrystallisation and grain growth. The microstructural changes are observed by measuring the surface acoustic wave velocities, allowing the grain evolution to be monitored.

Fields of Study & Subjects

Ultrasonics and Acoustic Wave Propagation Microstructure and mechanical properties Microstructure and Mechanical Properties of Steels

Publication details

Journal / source
Materialia
Volume
45
Pages
102675–102675
Publication date
29 January 2026
Language
EN