Results 71 to 80 of about 643,568 (346)

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

A Combined Signal Display Method for Hollow Axle Automated Ultrasonic Test System

Kongzhi Yu Xinxi Jishu, 2018
Hollow axle automated ultrasonic test system uses high speed spinning probes inside the hole of the axle. This generates massive data containing echo wave and position information.
TANG Lixin
doaj  

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

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

Studies on mechanical behavior of glass epoxy composites with induced defects and correlations with NDT characterization parameters [PDF]

, 2007
Degradation in mechanical properties (compression, flexural and ILS) of glass epoxy composite laminates with induced defects (simulating delaminations) was studied. The defects were characterized by using the A-scan ultrasonic pulse-echo technique.
Kumar, C Rahul, Pradeep, D, Rao, RMVGK, Reddy, N Janardhana, Srikanth, L   +4 more
core   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 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

Ultrasonic scanning system for in-place inspection of brazed-tube joints [PDF]

, 1970
System detects defects of .051 cm in diameter and larger. System incorporates scanning head assembly including boot enclosed transducer, slip ring assembly, drive mechanism, and servotransmitter.
Haralson, H. S., Haynes, J. L., Wages, C. G.   +2 more
core   +2 more sources

Interface Microstructures and Bond Formation in Ultrasonic Consolidation [PDF]

, 2007
The quality of ultrasonically consolidated parts critically depends on the bond quality between individual metal foils. This necessitates a detailed understanding of interface microstructures and ultrasonic bonding mechanism.
Adams, B. L., Aydelotte, B., Janaki Ram, G. D., Nylander, C., Stucker, B. E., Yang, Y.   +5 more
core   +1 more source