[HTML][HTML] In situ characterization of laser-generated melt pools using synchronized ultrasound and high-speed X-ray imaging
Metal additive manufacturing is a fabrication method that forms a part by fusing layers of
powder to one another. An energy source, such as a laser, is commonly used to heat the …
powder to one another. An energy source, such as a laser, is commonly used to heat the …
Ultrasonic nondestructive evaluation of additively manufactured wear coatings
This work pertains to the nondestructive evaluation of additively deposited coatings using
ultrasound measurements. The specific objective was to evaluate using ultrasound surface …
ultrasound measurements. The specific objective was to evaluate using ultrasound surface …
Uncovering microstructural heterogeneities in binder jet printed SS316L through ultrasonic testing and X-ray computed tomography
Samples extracted from a binder jet printed stainless steel 316L block with variations in
grain and pore characteristics were studied using X-ray computed tomography (XCT) and …
grain and pore characteristics were studied using X-ray computed tomography (XCT) and …
Evaluating grain size in polycrystals with rough surfaces by corrected ultrasonic attenuation
X Li, X Han, AP Arguelles, Y Song, H Hu - Ultrasonics, 2017 - Elsevier
Surface roughness of a sample has a great effect on the calculated grain size when
measurements are based on ultrasonic attenuation. Combining modified transmission and …
measurements are based on ultrasonic attenuation. Combining modified transmission and …
Iterative solution to bulk wave propagation in polycrystalline materials
CM Kube - The Journal of the Acoustical Society of America, 2017 - pubs.aip.org
This article reevaluates two foundational models for bulk ultrasonic wave propagation in
polycrystals. A decoupling of real and imaginary parts of the effective wave number permits …
polycrystals. A decoupling of real and imaginary parts of the effective wave number permits …
Appraising scattering theories for polycrystals of any symmetry using finite elements
This paper uses three-dimensional grain-scale finite-element (FE) simulations to appraise
the classical scattering theory of plane longitudinal wave propagation in untextured …
the classical scattering theory of plane longitudinal wave propagation in untextured …
Evaluating the grain size in curved components using the ultrasonic attenuation method with diffraction correction
C Zhang, X Li, Y Song, X Han, J Han - NDT & E International, 2016 - Elsevier
Ultrasonic wave propagation in curved components was simulated based on the Multi-
Gaussian beam theory to eliminate the negative influence of the surface curvature and water …
Gaussian beam theory to eliminate the negative influence of the surface curvature and water …
Evaluation of early fatigue signatures in lightweight aluminum alloy 7075
The current work investigates early material changes that manifest in aluminum alloy 7075
subjected to fatigue loading. Tension-tension specimens linearly tapered in width were …
subjected to fatigue loading. Tension-tension specimens linearly tapered in width were …
Characterization of microstructural anisotropy using the mode-converted ultrasonic scattering in titanium alloy
H Du - Ultrasonics, 2022 - Elsevier
The mode-converted (Longitudinal to Transverse, LT) ultrasonic scattering was utilized to
characterize the microstructural anisotropy on three surfaces of samples cut from the low …
characterize the microstructural anisotropy on three surfaces of samples cut from the low …
Characterization of grain size in 316L stainless steel using the attenuation of Rayleigh wave measured by air-coupled transducer
M Wang, Y Bu, Z Dai, S Zeng - Materials, 2021 - mdpi.com
Grain size is an important parameter in evaluating the properties of microstructures in
metals. In this paper, the attenuation coefficient of Rayleigh waves is introduced to …
metals. In this paper, the attenuation coefficient of Rayleigh waves is introduced to …