Identification method of circumferential declination based on amplitude reduction of pipeline ultrasonic internal inspection signals

L Cai, Z Diao, F Chen, L Guan, G Xu - Nondestructive Testing and …, 2024 - Taylor & Francis
The echo signal of ultrasonic internal inspection is highly sensitive to the incident deflection
angle between the probe and the measured surface of the pipeline, which is the key factor …

Modal acoustic emission-based circumferential crack feature extractions for pipeline welds with L-shaped flexible sensor array

P Hu, X Gui, X Yu, L Hua - Nondestructive Testing and Evaluation, 2024 - Taylor & Francis
The collection and analysis of acoustic emission (AE) from weld circumferential cracks are
crucial for ensuring pipeline safety. However, the unclear propagation characteristics and …

Urban hazardous chemicals pipeline leakage positioning method based on CELMD-MCKD

Y Hao, Z Du, Z Xing, J Jiang, K Yang… - … Testing and Evaluation, 2021 - Taylor & Francis
Aiming at the difficulty of leak detection of urban hazardous chemical pipelines, this paper
proposes a method for locating pipeline leaks based on the complementary ensemble local …

[PDF][PDF] 金属构件硬度的无损检测研究进展与展望

沙经伟, 范孟豹, 曹丙花, 杨雪锋 - 机械工程学报, 2023 - qikan.cmes.org
金属构件的硬度是其力学和机械性能的关键指标之一, 因此硬度检测在工业生产中具有重要意义
. 传统的硬度检测方法通常采用压痕或划痕等方式, 这种方法存在破坏性大, 效率低等问题 …

Influence of temperature on mechanical characteristics of 1018 low carbon steel estimated by ultrasonic non-destructive testing method

TV Pham, DT Kien - Indian Journal of Pure & Applied Physics …, 2017 - op.niscpr.res.in
The temperature dependence of ultrasonic velocities propagated in low carbon steel 1018
has been investigated by the A-scan mode of the ultrasonic non-destructive testing method …

Microstructure quantification and phased array ultrasonic inspection of GH3535 alloy weld

Y Xiaodan, Y Kun, L Zhijun… - Proceedings of the …, 2024 - journals.sagepub.com
The critical problem in accurately characterising the defects in nickel-based alloy weld is the
skewing of the ultrasonic beam due to the heterogeneity. This article aims to address this …

Accurate wave velocity measurement from diffuse wave fields

M Png, M Huang, M Bahreman, CM Kube… - arXiv preprint arXiv …, 2024 - arxiv.org
Directional wave speeds variations in anisotropic elastic solids enables material
characterisation capabilities, such as determination of elastic constants and volumetric …

3D ultrasonic reconstruction of contour node represented voids and cracks

B Yan, L Chen, CK Wu, H Ma - NDT & E International, 2021 - Elsevier
Although the 2D imaging technology was widely used, it cannot provide enough information
for protecting cultural relics. Base on the homogeneous material assumption, 3D contour …

[HTML][HTML] Исследование и разработка методики технической диагностики гребных валов

ЮИ Матвеев, АА Хлыбов, ВВ Глебов - … . Серия: Морская техника …, 2021 - cyberleninka.ru
Гребные валы являются конструктивными узлами, требующими повышенного
внимания. В соответствии с требованием безопасности представлены результаты …

Study of the precipitation process in aging steel pipeline weldments by thermoelectric power means

S Ramirez, H Carreon, MG Carreon, M Salazar… - Applied Sciences, 2018 - mdpi.com
The microstructural changes due to the aging process in steel pipeline weldments as a
function of the thermoelectric power (TEP) were studied. In general, the thermoelectric …