A5110639135- Laser Material Processing Techniques
- Laser-Plasma Interactions and Diagnostics
- Microstructure and Mechanical Properties of Steels
- Shape Memory Alloy Transformations
- High-Temperature Coating Behaviors
- Magnetic Properties and Applications
- Human Mobility and Location-Based Analysis
- Solidification and crystal growth phenomena
- High-Velocity Impact and Material Behavior
- Optical Systems and Laser Technology
- Metamaterials and Metasurfaces Applications
- Anodic Oxide Films and Nanostructures
- Video Surveillance and Tracking Methods
- Laser-induced spectroscopy and plasma
- Surface Roughness and Optical Measurements
- Advanced Surface Polishing Techniques
- Antenna Design and Analysis
- Additive Manufacturing Materials and Processes
- Data-Driven Disease Surveillance
- High Entropy Alloys Studies
- Ocular and Laser Science Research
- Advanced Antenna and Metasurface Technologies
Harbin Institute of Technology
2021-2023
Shandong University of Science and Technology
2022
University of Science and Technology Liaoning
2018-2020
To synthesize dynamically tunable bound states in the continuum (BIC) metasurfaces terahertz (THz) band, this study, a Dirac semimetal metasurface was designed for dynamic switching between THz-band BIC and quasi-BIC. We have simulated metasurface, symmetry-protected with quality factor (Q-factor) of 147 achieved by breaking symmetry structure, variation law Q-factor asymmetry parameter investigated, physical mechanism quasi-BIC generation determined analyzing surface electric field current....
Accurate acquisition of the microscopic representation martensite transformation process is key to obtaining best performance material, it great significance in field quenching iron‐based materials and material design. The affected by a variety parameters, quantitative analysis influence degree, sensitivity various parameters on accurately grasp mechanism martensite. This paper combines phase‐field with finite element method, mathematical model for from metastable steady state established...
Obtaining an accurate microscopic representation of the martensitic transformation process is key to realizing best performance materials and great significance in field material design. Due martensite phase rapidly, current experimental hard capture all information Martensite process. Combining phase-field method with finite-element method, a model from metastable state steady established. The law single nucleus during accurately described. By changing that affect parameters, effects...
Martensite is a common metallographic structure. Accurately revealing the objective law of martensite transformation process great significance for controlling material organization and design materials. Herein, based on phase‐field method, 3D three‐variant model from metastable to steady state established Khachaturyan. A. G. dislocation dynamic model. The mechanism analyzed growth behavior variants obtained. research reveals in multivariant transformation, verifies microstructure steel...
熔覆过程存在极其复杂的传热及热-弹-塑-流多场耦合变化，将影响对流、传热、传质、凝固和相变，而熔覆中的急冷急热会产生复杂的残余应力与变形，产生熔覆裂纹，影响熔覆层质量。揭示熔覆过程中多场耦合演变机理是控制和避免产生熔覆裂纹的关键。文中以CALPHAD法计算温变物性参数，建立了碟片激光器激光熔覆过程多场耦合模型，综合考虑了光束与粉末间的相互作用，熔池表面张力、浮力对液态金属流动的影响，熔覆带的瞬时变化，计算得出了熔覆过程温度场、速度场、应力场的瞬时变化规律。运用Zeiss-ƩIGMA HD扫描电镜进行金相实验，验证了所建模型的准确性。计算表明：形成近似2 mm×1.5 mm×1 mm椭球体熔池，最高温度在光斑中心偏后位置；700 ms后，等效热应力稳定在548 MPa左右，熔池底部热应力最大。该研究为减小和消除残余应力提供了有效途径与方法。