A5102502301- Aluminum Alloys Composites Properties
- Electrodeposition and Electroless Coatings
- Aluminum Alloy Microstructure Properties
- Metallurgical and Alloy Processes
- Advanced Welding Techniques Analysis
- Magnetic Properties of Alloys
- Additive Manufacturing Materials and Processes
- Welding Techniques and Residual Stresses
- Advanced ceramic materials synthesis
- Magnesium Alloys: Properties and Applications
- Metal and Thin Film Mechanics
- Corrosion Behavior and Inhibition
- Metal Alloys Wear and Properties
- High-Temperature Coating Behaviors
- Concrete and Cement Materials Research
- Advanced materials and composites
- Color perception and design
- Concrete Properties and Behavior
- Tribology and Wear Analysis
- Olfactory and Sensory Function Studies
- Fire effects on concrete materials
- Advanced Text Analysis Techniques
- Sentiment Analysis and Opinion Mining
- Aerogels and thermal insulation
- Emotion and Mood Recognition
Chongqing Jiaotong University
2021-2025
Harbin Institute of Technology
2023-2024
China National Petroleum Corporation (China)
2020
Ningxia University
2011-2018
Taiyuan University of Science and Technology
2012-2013
External magnetic field has been employed to improve appearance and suppress defects in the single laser or arc welding, its physical mechanism magnetic-field-assisted welding clearly clarified. However, few studies on processes laser-arc hybrid (MFA-LAHW) are conducted influencing is unclear. In this research, a comprehensive three-dimension numerical model established investigate keyhole dynamics weld pool behaviors MFA-LAHW under effect of different flux density. The results suggest that...
In view of the special requirements for strength, heat resistance and corrosion Al-Zn-Mg-Cu alloy oil drilling, Al-6.2Zn-2.5Mg-1.6Cu was prepared by increasing Cu content on basis Russian Series 1953 alloy. The effect treatment microstructures properties characterized optical microscope (OM), scanning electron (SEM) transmission (TEM), investigated tensile test at room temperature, thermal exposure test. results show that strength after T6 aging exhibit a decrease trend as an increase...
Nano Al films were prepared on AZ31 magnesium alloy samples by DC magnetron sputtering. The effects of sputtering power the microstructure and corrosion resistance film investigated. results show that surface aluminum is dense polycrystalline state, it oriented along (111) crystal plane. grain size first increases then decreases with increase power. When exceeds 100 W, there no insignificant effect orientation crystals current density are reduced two orders magnitude. sputtered varies...
The Ni-P-W/Al 2 O 3 composite coatings were deposited on the surface of sintered NdFeB permanent magnet by electroless plating method. morphology and phases investigated using scanning electron microscopy X-ray diffraction respectively. hardness corrosion resistance also tested. results indicated that appears closely nodules morphology, microhardness increases linearly with increasing incorporation Al ratio. Compared Ni-P-W amorphous alloy coating, was superior to coating obviously. However,...
The Ni-P-W/nano-Al 2 O 3 composite coatings were deposited on the surface of sintered NdFeB permanent magnet by electroless plating method. morphology and phases investigated using scanning electron microscopy X-ray diffraction respectively. hardness corrosion resistance also tested. results indicated that appears closely nodules morphology, microhardness increases with increasing incorporation Al ratio. Compared Ni-P-W alloy coatings, was superior to coating obviously.
This paper adopted freeze casting method to prepare porous Al 2 O 3 ceramic bodies with interconnected pore channels as a preform. The preform was pressureless infiltrated Nb-Al binary alloy by using electromagnetic induction furnace. results indicated that the melt solidified sphere-like body under surface tension driving. It difficult obtain matrix composites. However, wettability between and improved obviously while Ti Cr alloying elements were added into alloy. Also, resultant...
The detection of keyhole-induced pore positions is a critical procedure for assessing laser welding quality. Considering the error due to migration and noise interference, this research proposes regional prediction model based on time–frequency-domain features plume. original plume signal was separated into several segments construct morphological sequences. To suppress mode mixing caused by environmental noise, variational modal decomposition (VMD) utilized process signals. time–frequency...
In the travel diaries of Zhou Bida, a prominent Southern Song scholar, such As 『Guiyuling Diary』, 『Xianju Lu』, 『Fantou Youshan 『Tongshi Lu』 And 『Nangui there are many descriptions natural scenery, reflecting different aesthetic concepts scholars in Dynasty compared to those prehistoric and ancient periods. Through study Bida's diaries, it can be seen that Dynasty's aesthetics, not only was inclined show one's personality moral quality through but also tended link aesthetics with scholar's...
Abstract In this study, the cold-rolled Al 0.3 CoCrFeNi high entropy alloys were heat treated at 900°C for 30min and 1050°C 20min, respectively, to investigate effect of treatment on microstructure alloy. The results showed that grain refinement occurred in 900°C/30min annealed sample, while remarkable equiaxial grains twins appeared 1050°C/20min sample. hardness samples a decrease trend following: as-rolled which can be attributed dislocation elimination caused by recovery recrystallization.
¹̄The Ni-P-W/Al 2 O 3 composite coatings were deposited on the NdFeB magnetic materials surface by electroless plating method. The morphology of was investigated using scanning electron microscopy. And X-ray diffraction used to identify phase constituents. interfacial bonding strength between and matrix also tested. results indicated that is prone be increased while Al powders co-deposited with Ni-P-W coatings. would reach highest value when concentration in rang 5gL -1 10gL .
Ceramic coatings on metallic substrates have increasing application in industry due to enhanced mechanical properties and corrosion resistance of the ceramic coatings.In particular,the SiC/Al2O3 composite coating is desirable since it could offer both high wear chemical stability at room temperature.In this work,polycarbosilane(PCS) as SiC precursor polymer,SiC nano powder inert filler,Al reactive filler were mixed produce coating,where produced from PCS together with nanoparticles,and Al2O3...
In the process of measure operation for oil and gas wells, downhole tools may get stuck, which not only delays construction period, but also increases cost. This paper discusses a kind degradable metal material can be used to make wells. order prepare material, firstly, according requirements technology overall design idea with magnesium alloy as core was determined, then Ni, Ti, Cr, Cu other metals were determined auxiliary materials enhance strength through electrochemical experiments....