A5100622951- Surface Treatment and Residual Stress
- Laser Material Processing Techniques
- High Entropy Alloys Studies
- Shape Memory Alloy Transformations
- Metal Alloys Wear and Properties
- Metal and Thin Film Mechanics
- Aluminum Alloys Composites Properties
- Additive Manufacturing Materials and Processes
- Tribology and Wear Analysis
- High-Temperature Coating Behaviors
- Diamond and Carbon-based Materials Research
- Microstructure and Mechanical Properties of Steels
- Adhesion, Friction, and Surface Interactions
- Erosion and Abrasive Machining
- Bone Tissue Engineering Materials
- Advanced Welding Techniques Analysis
- Welding Techniques and Residual Stresses
- Nonlinear Optical Materials Studies
- Fluid Dynamics and Vibration Analysis
- Structural Health Monitoring Techniques
- Membrane-based Ion Separation Techniques
- Surface Roughness and Optical Measurements
- Refrigeration and Air Conditioning Technologies
- Industrial Vision Systems and Defect Detection
- Lubricants and Their Additives
Shanghai Laser Technology Institute
2024
Ruhr University Bochum
2018-2024
Tianjin University of Technology and Education
2024
Beijing University of Chemical Technology
2022
Shenyang Aerospace University
2021
Helmholtz-Zentrum Hereon
2021
Beihang University
2020
Southeast University
2020
Nanjing University of Aeronautics and Astronautics
2019
Northeastern University
2013-2019
To investigate the effect of laser shock peening (LSP) with different LSP impacts on mechanical properties in artificial seawater and corrosion resistance shipbuilding 5083Al alloy 3.5% NaCl solution, wear property electrochemical tests were performed by a ball-on-disk sliding tester workstation. The mass losses samples treated 1 3 are much lower, 55.22% 65.94%, respectively, than those untreated specimens seawater. Compared sample, rate decreased 74.91% 95.03% after being impacts,...
In the present research, an iterative numerical model is proposed to investigate nanosecond pulsed laser ablation (PLA) mechanism of DD6 single-crystal superalloy. model, two subroutines are introduced trace moving boundary and update thermal load. The iteration between main governing equation enables PLA simulation consider material front effect comprehensive heat dissipation including convection radiation. basic experimental results exhibit a good agreement with which indicates accuracy...
This paper proposes a novel welding process for ultrahigh-strength steel. The effects of parameters on the and weld formation were studied to obtain optimal parameter window. It was found that metal transfer modes solid wires primarily determined by electrical parameters, while flux-cored consistently exhibited multiple droplets per pulse. one droplet pulse possessed better stability formation, whereas short-circuiting or pulses easily caused abnormal arc ignition decreased stability, which...
Magnesium and its alloys have shown great potential as promising biodegradable implantation materials. However, rapid biodegradation has limited them to clinical applications. To overcome this disadvantage, a Ca/P coating was formed on AZ31B magnesium alloy by micro‐arc oxidation (MAO) in three different electrolytes with without hydroxyapatite (HA). The surface properties were determined scanning electron microscope (SEM), X‐ray diffraction (XRD), micro‐hardness tester. Immersion tests,...
Laser shock peening with a femtosecond laser system was presented in this research work. The NiTi shape memory alloy processed by the (FsLSP) treatment without protective layer air. Femtosecond is new surface technology, which can induce an intense wave low single pulse energy under atmospheric conditions. topography, roughness, microhardness, and wear resistance were measured on of before after treatment. results showed that roughness microhardness could be increased peening, may due to...
The laser nitriding was performed in nitrogen gas at room temperature (20 °C) and low (−190 by a power fiber to modify the wear abrasion resistance of NiTi alloy. surface roughness element composition were analyzed device energy-dispersive X-ray spectroscopy respectively. results show that treatment can change due remelting. effect on microhardness, friction coefficient, worn scars alloy also studied, which shows microhardness increases after nitriding. optical microscope scanning electron...
During laser shock peening, the pulsed with high energy is irradiated on surface of absorbing coating, after which induces a plasma explosion. The explosion could induce wave peak pressure much higher than yield strength metal samples so that plastic deformation can be formed peening. After peening materials, form compressive residual stress near sample, beneficial for mechanical properties. hardness tester used to measure sample and without results analyze effect coating wave. study...
The reduction behavior of the oxide scales with two different microstructures in gas H 2 :Ar = 1:2 at 400–625 °C is investigated detail. mass change scale measured by thermogravimetric analysis, and a function between degree, temperature, reaction time established. experiment results show that increase temperature has an accelerating influence on eutectoid (Fe 3 O 4 /α‐Fe) until reaching 550 °C, then further decelerates reduction. For without eutectoid, rate 450 extremely high, decreases...
Laser shock peening is an innovation technique due to its significant improvement on the corrosion resistance of metallic materials. The study describes effect laser with multiple LSP impacts 2024 aluminum alloy in NaCl water solution a mass fraction 3.5% by using electrochemical technique. experimental results reveal that significantly reduces rate alloy, and as number increases decreases. demonstrates effective method improve alloy.
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Biao Ma, Changsheng Li, Tao Hao Wang; Microstructure strength of a bainitic steel for underground mine equipment. AIP Conf. Proc. 17 May 2013; 1532 (1): 520–525. https://doi.org/10.1063/1.4806870 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex...
As an important connection part of machine and foundation, the machine-foundation interface have a critical effect on working accuracy life whole machine.The is generated by two kinds materials (steel concrete), crushed theory asperity concrete proposed in this paper.This hold that will be when load surface go beyond limit stress.This paper gave real contact area model concrete-steel interface, relationship corresponding normal single asperity, different fractal dimension' influence quality...