Multimodal laser opto-ultrasonic spectroscopy (LOUS) Approach to investigate the impact of elemental composition on the engineering properties of high-density tungsten alloys'
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引用次数: 0
Abstract
The impact of elemental composition on the engineering properties of high-density tungsten alloy is crucial, particularly in relation to grain size, hardness, elastic modulus, and surface degradation. This study introduces a new multimodal laser opto-ultrasonic spectroscopy (LOUS) technique, which simultaneously integrates the benefits of laser-induced breakdown spectroscopy (LIBS) and laser ultrasonic testing to evaluate the engineering properties of tungsten alloys. The findings indicate that the increasing tungsten concentration significantly enhances the samples' hardness, grain size and elastic modulus. The composition of elements and hardness were assessed using a calibration curve derived from the emission intensity ratio (W-II/W-I) and plasma electron temperature (Te) in optical emission. The correlation results of (W-II/W-I) and Te showed significant enhancement with the increase of hardness with a regression coefficient (R2 ≥ 0.996), validating the Saha-Eggert relation and underscoring model effectiveness. Additionally, the correlation of the laser ultrasonic testing parameters (attenuation coefficient and velocities) in assessing grain size and elastic modulus showed good reliability (R2≥0.993) when compared to the results obtained from conventional optical microscopy and tensile testing. The results underscore the accuracy and predictive ability of the LOUS method for in-situ characterization.
期刊介绍:
Optics and Lasers in Engineering aims at providing an international forum for the interchange of information on the development of optical techniques and laser technology in engineering. Emphasis is placed on contributions targeted at the practical use of methods and devices, the development and enhancement of solutions and new theoretical concepts for experimental methods.
Optics and Lasers in Engineering reflects the main areas in which optical methods are being used and developed for an engineering environment. Manuscripts should offer clear evidence of novelty and significance. Papers focusing on parameter optimization or computational issues are not suitable. Similarly, papers focussed on an application rather than the optical method fall outside the journal''s scope. The scope of the journal is defined to include the following:
-Optical Metrology-
Optical Methods for 3D visualization and virtual engineering-
Optical Techniques for Microsystems-
Imaging, Microscopy and Adaptive Optics-
Computational Imaging-
Laser methods in manufacturing-
Integrated optical and photonic sensors-
Optics and Photonics in Life Science-
Hyperspectral and spectroscopic methods-
Infrared and Terahertz techniques