A5112249446- Aluminum Alloy Microstructure Properties
- Microstructure and mechanical properties
- Aluminum Alloys Composites Properties
- Metal Forming Simulation Techniques
- Electromagnetic Effects on Materials
- Bauxite Residue and Utilization
- High Temperature Alloys and Creep
- Material Properties and Processing
- Advanced Welding Techniques Analysis
- Modeling, Simulation, and Optimization
- Thermodynamic and Structural Properties of Metals and Alloys
- Additive Manufacturing and 3D Printing Technologies
- Metallurgical Processes and Thermodynamics
- Wind Turbine Control Systems
- Epoxy Resin Curing Processes
- Corrosion Behavior and Inhibition
- Metallurgy and Material Forming
- Manufacturing Process and Optimization
- Fluid Dynamics and Heat Transfer
- Microgrid Control and Optimization
- Mechanical stress and fatigue analysis
- Frequency Control in Power Systems
Central South University
2015-2024
High pulsed current density has both thermal and athermal effects on the metals, meaning that it can be used to promote metal forming efficiency. Additionally, also in creep-ageing of high-strength aluminum alloys. In this present study, creep-aging behavior, mechanical properties, microstructural evolution were investigated at various densities AA7150 alloy. The results have shown electropulsing treatment (EPT) increase dislocation movement decrease for coupling effects. As such, could...
The anisotropy in creep aging behavior and microstructural evolution of AA2195-T34 A l–Li alloy plates under different stress levels at 180 °C were systematically investigated by constant-stress aging, mechanical property testing microstructure characterization. results indicated that the strain initially increases then decreases with angle relative to rolling direction cause divergences dislocation density number movable sliding systems. 45° is 1.15 times 1.41 larger than 0° 90° directions...
The intergranular corrosion (IGC) sensitivity of an Al‐3.81Cu‐1.28Li‐X alloy with T6 aging for different time at 150, 175, and 200 °C was investigated. With aging, the potential lowers due to precipitation, accompanied coarsening discontinuous distribution grain boundary precipitates, which contributes evolution time. Corrosion mode stage (corresponding hardness evolution) temperature 150 175 follows following order: pitting local IGC (early aging), general (under‐aged), (near peak‐aged),...
Creep age forming (CAF) has been developed to manufacture large complex components in aerospace industry. However, crystalline textures initial material for CAF process may influence the creep ageing behavior, leading low precision of formed component. In-planer anisotropy creep-ageing behavior a textured Al-Cu-Mg alloy was investigated. The total deformation decreased with increase angles between applied stress and rolling direction. samples loading direction parallel is 2.33, 2.07 1.62...
The creep deformation behavior, aging hardening response and microstructure evolution of 2A14 aluminum alloy (Al-4.81wt%Cu-0.66wt%Mg-0.97wt%Si) at different temperatures have been systematically investigated by test, tensile transmission electron microscopy differential scanning calorimetry. results show that the total strain steady-state rate significantly increase with increasing temperature in range 408 K–458 K, while behaviors optimum 433 K shortest primary stage lowest stress...
Creep aging forming (CAF) is a potential process to manufacture large integral components of Al–Li alloys, which exhibits poor formability and susceptibility damage cracking via traditional plastic processes. alloys also have disadvantages, such as low creep comprehensive properties. To address this problem, study adopted pre-aging treatment before (CA). The effects at different temperatures (65 °C, 90 115 °C) on the CA were evaluated 155 °C for 18 h. strain, evolution mechanical properties,...
The creep aging behaviors of retrogressed Al-Zn-Mg-Cu alloy were studied by uniaxial tensile tests at 140 °C. effects time and applied stress on microstructures properties the investigated using transmission electron microscope (TEM), hardness, corrosion resistance tests. Results show that process are significant. size matrix precipitate (MPt), distance between MPts, width precipitate-free zone (PFZ), grain boundary precipitates (GBPs) increase with stress. With stress, improved. After for...