A5091550489- Surface Treatment and Residual Stress
- Erosion and Abrasive Machining
- Diamond and Carbon-based Materials Research
- Healthcare and Venom Research
- High-Velocity Impact and Material Behavior
- Metal and Thin Film Mechanics
- High Temperature Alloys and Creep
- Additive Manufacturing Materials and Processes
- High Entropy Alloys Studies
- Tendon Structure and Treatment
- Welding Techniques and Residual Stresses
- Ultrasonics and Acoustic Wave Propagation
- Metal Alloys Wear and Properties
- Metallurgy and Material Forming
- Fatigue and fracture mechanics
- Lubricants and Their Additives
- Advanced Surface Polishing Techniques
- Tribology and Wear Analysis
- Speech and Audio Processing
- Hydrogen embrittlement and corrosion behaviors in metals
- Structural Health Monitoring Techniques
- Acoustic Wave Phenomena Research
- Optical measurement and interference techniques
- Bee Products Chemical Analysis
- Advanced materials and composites
Air Force Engineering University
2015-2024
Xi'an Jiaotong University
2024
East China University of Science and Technology
2018-2022
We investigated the strengthening mechanism of laser shock processing (LSP) at high temperatures in K417 nickel-based alloy. Using a laser-induced wave, residual compressive stresses and nanocrystals with length 30-200 nm thickness 1 μm are produced on surface alloy K417. When is subjected to heat treatment 900 °C after LSP, most stress relaxes while microhardness retains good thermal stability; nanocrystalline has not obviously grown per 10 h treatment, which shows comparatively stability....
The residual stress introduced by laser shock peening (LSP) is one of the most important factors in improving metallic fatigue life. wave pressure has considerable influence on distribution, which affected distribution energy. In this work, a titanium alloy treated LSP with flat-top and Gaussian beams, effects spatial energy are investigated. Firstly, 3D finite element model (FEM) developed to predict different predicted validated experimental data. Secondly, three kinds pulse energies, 3 J,...
Aero-engine blades are an integral part of the aero-engine, and integrity these affects flight performance safety aircraft. The traditional manual detection method is time-consuming, labor-intensive, inefficient. Hence, it particularly important to use intelligent methods detect identify damage. In order quickly accurately damage aero-engine blades, present study proposes a network based on Improved Cascade Mask R-CNN network—to establish related models. model can type locate segment area...
Structural health monitoring (SHM) is crucial for high-performance systems like aerospace engines, enabling early detection of damage and potential failures in key components, especially turbine blades under extreme temperatures stress. Residual stress a major factor component failure, requiring precise measurement. This study proposes fast peak-finding algorithm using local scanning, integrating Kikuchi diffraction crystal structure features to optimize residual testing via X-ray...
With the advancement of aerospace technology, importance Structural Health Monitoring (SHM) in ensuring safety critical equipment has become increasingly evident. Nickel-based superalloys are widely utilized key components such as turbine blades and disks due to their exceptional high-temperature performance. Accurate measurement residual stress is crucial for enhancing material reliability extending service life components, particularly single-crystal nickel-based where becomes complex...
In this paper, microstructure, microhardness, and residual stress of TC17 titanium alloy treated by laser shock peening (LSP) with different fluence were examined compared x-ray diffraction, scanning electron microscope, transmission microhardness test, test. The results microstructure point out that microstrains grain-refinement are generated in the material surface layer which is a severe plastic deformation layer. relation to stress, indicate LSP can obviously improve hardness introduce...