Abstract
This paper presents a non-destructive evaluation method of volumetric texture using resonant ultrasound spectroscopy (RUS). It is based on a general theoretical platform that links the directional wave speeds of a polycrystalline aggregate to its texture through a simple convolution relationship, and RUS is employed to obtain the speeds by measuring the elastic constants, where well-established experimental and post-processing procedures are followed. Important lower-truncation-order textures of representative hexagonal and cubic metal samples with orthorhombic sample symmetries are extracted, and are validated against independent immersion ultrasound and neutron tests. The successful deployment of RUS indicates broader applications of the general methodology.
Highlights
This paper presents a non-destructive evaluation method of volumetric texture using resonant ultrasound spectroscopy (RUS)
Ultrasound presents an attractive option for non-destructive evaluation of volumetric texture, given its high penetration power and wide availability
A general theoretical platform proposed by the authors [10, 11] gave a viable solution to obtaining texture using direction
Summary
Rapid measurement of volumetric texture using resonant ultrasound spectroscopy Bo Lana,*, Michael A. Lowea aDepartment of Mechanical Engineering, Imperial College London, UK bDepartment of Earth Sciences, University of Cambridge, UK cGerman Engineering Materials Science Centre at MLZ, Helmholtz-Centre Geesthacht, Germany dHeinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Germany eDepartment of Materials, Imperial College London, UK
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