A5078751766- Aluminum Alloy Microstructure Properties
- Aluminum Alloys Composites Properties
- High Temperature Alloys and Creep
- Fatigue and fracture mechanics
- Metallurgy and Material Forming
- Tribology and Lubrication Engineering
- Gear and Bearing Dynamics Analysis
- Microstructure and mechanical properties
- Advanced Welding Techniques Analysis
- Advanced Thermodynamic Systems and Engines
- Refrigeration and Air Conditioning Technologies
- Intermetallics and Advanced Alloy Properties
- Material Properties and Applications
- Hydraulic and Pneumatic Systems
- Advanced Combustion Engine Technologies
- Quantum Dots Synthesis And Properties
- Microstructure and Mechanical Properties of Steels
- Lubricants and Their Additives
- Adhesion, Friction, and Surface Interactions
- Metal and Thin Film Mechanics
- Advanced Semiconductor Detectors and Materials
- Chalcogenide Semiconductor Thin Films
- Heat Transfer and Optimization
- High Entropy Alloys Studies
- Corrosion Behavior and Inhibition
Beijing Institute of Technology
2019-2025
Nano-sized quantum dots (QDs) have the potential for application of stress sensing materials based on their pressure-sensitive photoluminescence (PL) properties, while influence a more realistic loading environment PL characteristics QDs under high-temperature remains to be further studied. Herein, we studied response CdTe repetitive loading-unloading conditions coupling explore stability its high temperature potential. The results show that with size 3.2 nm can detect pressure in range...
The high cycle fatigue behaviour of the Al–Si alloy extracted from a cylinder head is investigated through experiments and finite element simulations. Due to complexity structure differences in cooling rates local melt flow, microstructure characteristics studied exhibit spatial heterogeneity. scatter life high, which significantly affected by microstructure, especially crack nucleation pores. pores have great effect on dissipated inelastic energy (Wp) around pores, used as indicator for...
The mechanical properties’ variation of the cylinder head caused by heterogeneities microfeatures is systematically investigated metallography measurements, X‐ray computed tomography, tensile and fatigue tests using small specimens, fracture surface analysis. results show that microstructure defect characteristics exhibit high spatial heterogeneity, local performance closely related to microfeatures. hardness properties top plate flame are optimum, followed connecting wall, walls between...
In view of the non-uniform distribution mechanical properties cast aluminum alloy cylinder head, evaluation and microstructure heterogeneity head were studied. The results showed that plate position has best characterization, followed by floor thick partition plate. attenuate with increasing temperature. From 23°C to 300°C, tensile strength yield decrease in same range, but break elongation changes most obviously. characterization in-situ sampling satisfy Hall-Petch relationship. If required...
Abstract Nowadays, with higher power density trend and lightweight design requirements in internal combustion engine, more factors are considered bearing lubrication analysis to improve the performance decrease risk of failure. The effect roundness coaxiality on a V-type diesel engine main bearings were investigated systematically comprehensively using numerical simulation method based elasto-hydrodynamic theory. average flow model, asperity contact theory multi-body dynamics component mode...
Abstract It is the aim of this work to reduce friction power loss main bearings by optimization. To purpose, elastohydrodynamic (EHD) model used for EHD calculations different bearings. BP neural network implemented establish approximation Then, multi-objective optimization using genetic algorithm formulated and conducted. found that a more compliant bearing profile can provide hydrodynamic lift during film lubrication while profiles have significant impact on performance in comparison other...