A5079189268- Non-Destructive Testing Techniques
- Welding Techniques and Residual Stresses
- High Entropy Alloys Studies
- Hydrogen embrittlement and corrosion behaviors in metals
- Structural Integrity and Reliability Analysis
- High-Temperature Coating Behaviors
- Ultrasonics and Acoustic Wave Propagation
- Noise Effects and Management
- Metallic Glasses and Amorphous Alloys
- Geotechnical Engineering and Underground Structures
- Advanced Surface Polishing Techniques
- Advanced Machining and Optimization Techniques
- Vibration Control and Rheological Fluids
- Acoustic Wave Phenomena Research
- Advanced Chemical Sensor Technologies
- Metallurgy and Material Forming
- Metal Alloys Wear and Properties
- Electrochemical Analysis and Applications
- Microstructure and Mechanical Properties of Steels
- Additive Manufacturing Materials and Processes
- Laser and Thermal Forming Techniques
Jiangsu University of Science and Technology
2010-2024
China University of Petroleum, Beijing
2023-2024
Research Institute of Petroleum Exploration and Development
2024
Hunan University of Science and Technology
2023
Chinese Academy of Sciences
2022
The global reliance on oil and gas pipelines for energy transportation is increasing. As the pioneering review in field of ultrasonic defect detection based bibliometric methods, this study employs visual analysis to identify most influential countries, academic institutions, journals domain. Through cluster analysis, it determines primary trends, research hotspots, future directions critical field. Starting from current industrial in-line inspection (ILI) level, paper provides a flowchart...
The effects of laser scanning speed on the microstructure, microhardness, and corrosion behavior Ni45 coatings were investigated by using optical microscopy (OM), electron (SEM), X-ray diffraction (XRD), electrochemical measurements. results showed that increasing promotes transformation from planar crystals to dendrites refines grains concurrently. γ -(Ni, Fe), FeNi 3 , M 23 (C,B) 6 are identified as primary phase composition in regardless speed. Thereinto, formation growth precipitates can...
Locally resonant phononic crystals are a kind of artificial periodic composite material/structure with an elastic wave band gap that show attractive application potential in low-frequency vibration control. For control problems ship power systems, this paper proposes crystal board structure, and based on the Bloch theorem it uses finite element method to calculate structure displacement fields corresponding characteristic mode transmission curve sandwich plate characteristics studied. The...
In this study, quenching and tempering were employed to achieve the optimal match of strength toughness high-strength low-alloy (HSLA) 15CrNi3MoV steel. The effect temperature on microstructure evolution carbides precipitation steel was also investigated using scanning electron microscopy (SEM), a X-ray diffractometer (XRD) transmission (TEM). results showed that after at different temperatures, tempered martensite. During process, M3C precipitated ferrite matrix, needle-like accumulated...
Abnormal formation of girth weld is a major threat to the safe operation pipelines, which may lead serious accidents. Therefore, regular inspection and maintenance are essential for accident prevention energy security. This paper presents novel method inspecting abnormal in oil gas pipelines using alternating excitation detection technology. The based on analysis microscopic magnetic variations welded area under fields. An internal probe electronic system detecting were designed developed....
FeCrMoCB amorphous coatings were prepared on 316 stainless steel via an powder. Scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and X-ray diffraction (XRD) used to analyze the microstructure, composition, phase structure of coatings. Hardness friction wear testers applied investigate microhardness behavior Results show that Cr23C6, Cr15Fe7C6 Fe3Mo crystal phases appeared after laser cladding relative complete powder, fraction coating was calculated up 68.4 % using...
Abstract The TC4 titanium alloy bulk and irregular porous structures were prepared using Selective Laser Melting (SLM). This study systematically investigated the effects of laser power, scanning speed, spacing, energy density on forming quality specimens, through orthogonal experimental design. research results indicate that power is primary factor affecting during SLM process. With increase density, specimens shows an initial followed by a decrease, while Vickers hardness surface roughness...
This paper addresses circumferential weld cracking in oil and gas pipelines, a primary form of pipeline failure. To achieve scientific effective management the entire process, all regions, throughout life cycle high-grade steel pipeline, novel multi-physical field ultra-high-definition comprehensive condition inspection device has been designed developed. The incorporates dual-array structured composite electromagnetic probe, operating at 5K frequency, to real-time capture magnetic leakage...
The present work proposes an ultrasonic-frequency pulsed arc approach to improve effectively the service life of oxidative plasma cutting electrode, and introduces implementation principle system. A number electrode arcing experiments were then carried out demonstrate effectiveness this novel way. Experimental results show that ultrasonic frequency process can contract cathode zone while speeding up movement spots, thus reduced scope depth erosion pit on hafnium electrode. was finally...