Results 61 to 70 of about 20,397,556 (300)

A Signal-To-Noise Ratio Comparison fo Ultrasonic Transducers for C-Scan Imaging in Titanium [PDF]

, 1995
Digital data acquisition and the C-scan imaging of ultrasonic data offer improvements over analog recording techniques, such as strip-chart recording. As a result, peak-detected C-scan imaging is becoming the preferred method for the inspection of large ...
Gilmore, R., Copley, D., Howard, P.
core  

Engineering-Oriented Ultrasonic Decoding: An End-to-End Deep Learning Framework for Metal Grain Size Distribution Characterization

Sensors
Grain size is critical for metallic material performance, yet conventional ultrasonic methods rely on strong model assumptions and exhibit limited adaptability. We propose a deep learning architecture that uses multimodal ultrasonic features with spatial
Le Dai, Shiyuan Zhou, Yuhan Cheng, Lin Wang, Yuxuan Zhang, Heng Zhi   +5 more
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Nondestructive test for quality control in laboratory-scale fabrication of laminated composites using programmable portable ultrasonic

International Journal of Lightweight Materials and Manufacture
Laminated composites are the most frequently used component materials in manufacturing unmanned aerial vehicles (UAVs) in research centers or start-up industries.
Yusuf Giri Wijaya, Suprijanto, Damar Rastri Adhika, Rhakamerta Hijazi, Abian Nurrohmad   +4 more
doaj   +1 more source

Applications of Flexible Ultrasonic Transducer Array for Defect Detection at 150 °C

Sensors, 2013
In this study, the feasibility of using a one dimensional 16-element flexible ultrasonic transducer (FUT) array for nondestructive testing at 150 °C is demonstrated.
Jiunn-Woei Liaw, Jing-Chi Tzeng, Chun-Hsiung Chiu, Jeanne-Louise Shih, Kuo-Ting Wu, Cheng-Kuei Jen   +5 more
doaj   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Corrosion of API 5L X60 Pipeline Steel in Soil and Surface Defects Detection by Ultrasonic Analysis

Metals
The corrosion steels phenomenon is one of the main problems in the oil industry, such as in buried transmission pipelines used for high gas pressure for long distances.
Fatima Benkhedda, Ismail Bensaid, Abderrahim Benmoussat, Sid Ahmed Benmansour, Abdeldjelil Amara Zenati   +4 more
doaj   +1 more source

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

Advanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang, Jianxiang Zhao, Zhaoqi Chen, Hao Gong, Yinsen Yan, Junlei Tao, Yong Yang   +6 more
wiley   +1 more source

Non-Destructive Evaluation of Concrete with Ultrasonic C-Scan and Digital Image Enhancement Techniques

, 2013
This paper presents the results of Non-Destructive Evaluation (NDE) of concrete slabs using Ultrasonic C-Scan and image-enhancement algorithms for the detection and extraction of damage information from raw data.
Okafor, Anthony Chukwujekwu, Dutta, Amitabha, Amitabha Dutta, A. Chukwujekwu Okafor   +3 more
core   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source