A5044216868- Microstructure and Mechanical Properties of Steels
- Aluminum Alloy Microstructure Properties
- Metallurgy and Material Forming
- Aluminum Alloys Composites Properties
- Fatigue and fracture mechanics
- Microstructure and mechanical properties
- Metal Alloys Wear and Properties
- Additive Manufacturing Materials and Processes
- Hydrogen embrittlement and corrosion behaviors in metals
- High Entropy Alloys Studies
- Welding Techniques and Residual Stresses
- High-Velocity Impact and Material Behavior
- Metal and Thin Film Mechanics
- Additive Manufacturing and 3D Printing Technologies
- Metal Forming Simulation Techniques
- High Temperature Alloys and Creep
- Advanced Welding Techniques Analysis
- Magnetic Properties and Applications
- Surface Treatment and Residual Stress
- Laser and Thermal Forming Techniques
- Advanced machining processes and optimization
- Magnesium Alloys: Properties and Applications
Jiangxi University of Science and Technology
2017-2025
University of Science and Technology Beijing
2014-2019
Three different post-heat treatments, including direct aging (DA), solution heat treatment + precipitate hardening (T6), and retrogression re-ageing (RRA), were carried out on a Si-Zr-Er modified Al-Zn-Mg-Cu alloy, which is manufactured by laser powder bed fusion (LPBF). The results show that maintains the cellular structure of as-printed (AP) while T6 RRA promoted damage decomposition structure. size primary Al3(Er,Zr) phase increased after treatment, secondary phases uniformly distributed...
To reveal the microstructural evolution and stress–strain distribution of 780 MPa-grade ferrite/martensite dual-phase steel during a uniaxial tensile deformation process, plastic behavior under tension was studied using in situ EBSD crystal finite element method (CPFEM). The results showed that geometrically necessary dislocations (GND) ferrite accumulated continuously, which is conducive to formation grain boundaries, but texture did not change significantly. average misorientation angle...
This work reports a simple method for manufacturing heterogeneous structured Al-Mg-Si-Cu alloy profile modified by TiB2-TiC particles using conventional hot extrusion and solution heat treatment. The structures containing different proportions of coarse grains fine can be regulated the treatment time, their relationships with mechanical properties are studied. results show that formation structure in is attributed to non-uniform distribution particles, which have strong inhibition effects on...
The heterostructured Al–Mg–Si–Cu alloy profile modified by TiB2–TiC particles was prepared conventional extrusion and solution treatment, the coupling effect of heterostructure precipitates on mechanical properties studied in this work. results showed that peak-aged sample has high tensile strength (385 MPa) yield (366 with low elongation (4.8%), while pre-aged achieves higher (426 MPa), (401 also (8.0%). better comprehensive were attributed to synergistic strengthening precipitation...
Abstract Laser welding of heterogeneous high‐strength steels (AHSSs) is increasingly used in the automotive industry, while inhomogeneous microstructure joint could affect its fatigue crack growth (FCG) behavior. Therefore, fiber laser experiments were performed this study to evaluate microstructure, mechanical properties, and effects notch position on FCG behavior dissimilar welded DP980/QP980 joint. Results show that hardness fusion zone (FZ) near QP980 side was higher softening zones...
The microstructure evolution simulation of the whole process, i.e., cooling after hot rolling, cold recrystallization, austenitizing, slow cooling, and quenching, for dual phase steel is conducted based on cellular automata model. state values fraction, morphology, grain size, carbon concentration distribution etc. austenite, ferrite, pearlite were obtained. calculated kinetics curves morphology with different chemical composition heating or rates agree well experiment. growth new controlled...