A5025064182- Welding Techniques and Residual Stresses
- Additive Manufacturing Materials and Processes
- Microstructure and Mechanical Properties of Steels
- Advanced Welding Techniques Analysis
- High Temperature Alloys and Creep
- Hydrogen embrittlement and corrosion behaviors in metals
- Fatigue and fracture mechanics
- High Entropy Alloys Studies
- Magnesium Alloys: Properties and Applications
- Aluminum Alloys Composites Properties
- Additive Manufacturing and 3D Printing Technologies
- Aluminum Alloy Microstructure Properties
- Metal Alloys Wear and Properties
- Laser and Thermal Forming Techniques
- Advanced materials and composites
- Intermetallics and Advanced Alloy Properties
- Titanium Alloys Microstructure and Properties
- Electronic Packaging and Soldering Technologies
- Fire effects on concrete materials
- Nuclear Materials and Properties
- MXene and MAX Phase Materials
- Corrosion Behavior and Inhibition
- High-Velocity Impact and Material Behavior
- Advanced Surface Polishing Techniques
- Metal and Thin Film Mechanics
Tianjin University
2019-2025
Wuhan University of Science and Technology
2013-2019
Wuhan National Laboratory for Optoelectronics
2017
Huazhong University of Science and Technology
2015-2017
Circular beam oscillation was introduced to laser welding of 2 mm-thick AZ31 magnesium alloy. The appearance, microstructure and tensile properties the welds were investigated. It found that low frequency about 50 Hz small radius 0.5 mm are more beneficial improve weld under given parameters power kW, speed m/min oscillating diameter 0.35 mm. undercut defect even totally collapse appear when employing higher than 75 or larger 1.5 evolution mainly reflects in variation proportions equiaxed...
Laser-arc hybrid welding of 2219 aluminum alloy was carried out employing TiB2 particles. By pre-cladding a wide layer, the particles were easy to arrive weld edge, promoting columnar grains neighboring fusion line transferred equiaxed, and average grain size reduced by about 50%.
The crack growth behavior and microstructural evolution of 316H austenitic stainless steel welded joints subjected to load-controlled creep-fatigue at 550 °C was investigated in this study. A comprehensive analysis the fracture mechanisms both base metal (BM) weld (WM) conducted employing advanced characterization. results revealed that cracks BM WM preferentially propagate along paths high energy low resistance, characterized by substructured deformed grains. In BM, twin boundaries...
To study the effect of beam oscillating behavior on pore inhibition and microstructure evolution, laser welding Q235 steel was carried out. The formation, evolution mechanical properties were investigated. formation inhibited at frequency lower than 75 Hz radius larger 0.75 mm. weld mainly composed blocky martensite (MB), lath (ML), ferrite. Under given mm, fraction ML first increases then decreases with increasing. Hz, fusion zone is almost MB while disappears increasing to 1.25 well...
316H stainless steel is a critical material for fourth‐generation nuclear reactors, yet it prone to creep‐fatigue failure under high‐temperature and high‐pressure conditions. This study evaluates physics‐driven models (including time fraction model, ductile exhaustion modified strain energy density plastic model) data‐driven support vector regression, random forests, generalized regression neural networks, backpropagation networks) predicting the life of base metal welded joints. On basis...
In the scenario where autonomous underwater vehicles (AUVs) carry out tasks, it is necessary to reliably estimate underwater-moving-target positioning. While cameras often give low-precision visibility in a limited field of view, forward-looking sonar still an attractive method for sensing, which especially effective long-range tracking. This paper describes online processing framework based on forward-looking-sonar (FLS) images, and presents novel tracking approach Gaussian particle filter...