21 Result(s)
within
**gui Zheng
Materials Science
Characterization and Evaluation of Materials
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Article
Effect of Pre-immersion Temperature on Corrosion Product Films and Their Erosion Corrosion Resistance on 90/10 and 70/30 Copper-Nickel Tubes in 1 wt.% NaCl Solution
Both 90/10 and 70/30 copper-nickel tubes were immersed at different temperatures (10, 25 and 35 °C) for 30 days and then tested at 3 and 5 m/s to evaluate the erosion corrosion resistance of the corrosion prod...
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Article
Effect of surface damage induced by cavitation erosion on pitting and passive behaviors of 304L stainless steel
The corrosion behavior of 304L stainless steel (SS) in 3.5wt% NaCl solution after different cavitation erosion (CE) times was mainly evaluated using electrochemical noise and potentiostatic polarization techni...
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Article
Under-Deposit Corrosion of Carbon Steel Beneath Full Coverage of CaCO3 Deposit Layer under Different Atmospheres
The under-deposit corrosion of carbon steel beneath the full coverage of CaCO3 deposit layer in 3.5 wt.% NaCl solution under different atmospheres has been investigated by electrochemical tests, wire beam electro...
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Article
Can the Prior Cathodic Polarisation Treatment Remove the Air-Formed Surface Film and Is It Necessary for the Potentiodynamic Polarisation Test?
This paper clarifies two issues related to the prior cathodic polarisation treatment (PCPT) for the potentiodynamic polarisation test: whether PCPT can (1) remove the air-formed surface film and (2) affect the...
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Article
Effect of Ni Interlayer on Cavitation Erosion Resistance of NiTi Cladding by Tungsten Inert Gas (TIG) Surfacing Process
The NiTi cladding with/without Ni interlayer was prepared on stainless steel (SS) by tungsten inert gas (TIG) surfacing process, aiming at achieving good cavitation erosion resistance. The ranking according to...
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Article
Evolution of the Corrosion Product Film and Its Effect on the Erosion–Corrosion Behavior of Two Commercial 90Cu–10Ni Tubes in Seawater
The composition and structural evolution of the corrosion product film of two commercial 90Cu–10Ni tubes, namely Tube A and Tube B, after being immersed in natural seawater for 1, 3, and 6 months were characte...
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Article
Corrosion and Cavitation Erosion Behaviors of Two Marine Propeller Materials in Clean and Sulfide-Polluted 3.5% NaCl Solutions
The corrosion and cavitation erosion behaviors of two main materials for ship propellers, i.e., nickel–aluminum bronze (NAB) and manganese–nickel–aluminum bronze (MAB) were investigated in a clean and sulfide-...
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Article
Electrochemical Behavior of Three 90Cu-10Ni Tubes from Different Manufacturers After Immersion in 3.5% NaCl Solution
Investigation on the electrochemical behavior and corrosion product films formed on three 90Cu-10Ni tubes designated as Tubes A, B and C from three different manufacturers with different service lives were car...
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Chapter and Conference Paper
Material Challenges for Long Term and Safe Operation of Coal Gasification Systems
The coal gasification provides the possibility of substitution of petroleum in producing chemicals and fuels. However, the failures, faults and even accidents have been associated with the coal gasification sy...
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Article
Electrochemical Study on the Inhibition Effect of Phenanthroline and Its Cobalt Complex as Corrosion Inhibitors for Mild Steel
The corrosion inhibition effect of phenanthroline (Phen) and its cobalt complex (CoPhen) on the corrosion of carbon steel in sulphuric acid solutions was studied using potentiodynamic polarization and electroc...
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Article
Corrosion Behaviors of Pure Titanium and Its Weldment in Simulated Desulfurized Flue Gas Condensates in Thermal Power Plant Chimney
The corrosion behaviors of pure titanium and its weldment welded by tungsten inert gas (TIG) welding in simulated desulfurized flue gas condensates in thermal power plant chimney were investigated using potent...
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Article
Correlation Between Microstructure and Corrosion Behavior of Two 90Cu10Ni Alloy Tubes
Two kinds of 90Cu10Ni tubes with different service lives (more than 3 years and only 1 year, respectively) under identical working conditions were studied by an immersion test in a 3.5 wt% NaCl solution and th...
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Article
Effect of Spray Parameters on the Corrosion Behavior of HVOF Sprayed WC-Co-Cr Coatings
WC-10Co-4Cr cermet coatings were deposited on the substrate of AISI 1045 steel by using high-velocity oxygen-fuel (HVOF) thermal spraying process. The Taguchi method including the signal-to-noise (S/N) ratio a...
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Article
Influence of SnO2 films with high resistance on the performance of CdTe solar cells
In this paper, we report the SnO2 thin films with high resistance prepared by magnetic reactive sputtering on the transparent conductive glass covered with SnO2:F layers, and study the structural, optical, and el...
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Article
Synthesis and electrochemical properties of different sizes of the CuO particles
Well-dispersed cupric oxide (CuO) nanoparticles with the size from 10 to 100 nm were successfully synthesized by thermal decomposition of CuC2O4 precursor at 400 °C. The prepared CuO nanoparticles of different si...
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Article
Study of polycrystalline ZnTe (ZnTe:Cu) thin films for photovoltaic cells
In our work, polycrystalline ZnTe and ZnTe:Cu thin films were deposited by vacuum co-evaporation technology. The conductivity–temperature relationship was measured. And the properties of films were studied by ...
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Article
Preparation of manganese molybdate rods and hollow olive-like spheres
Stable phase alpha-manganese molybdate (α-MnMoO4) rods, wolframite structure MnMoO4 hollow olive-like spheres and hexahedron-like manganese molybdate monohydrate (MnMoO4·H2O) were selectively synthesized by a sim...
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Article
Structural and Optical Effects of Cap** Layer Material and Growth Rate on the Properties of Self-Assembled InAs Quantum Dot Structures
In order to develop nanoengineering methods to control electronic spectrum of self-assembled InAs quantum dots (QDs) grown by molecular beam epitaxy, we have utilized atomic force microscopy (AFM), photolumine...
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Article
Preparation of nanosized particles of FeNi and FeCo alloy in solution
FeNi and FeCo alloys of different compositions are prepared at room temperature in solution by surface catalysis or high-pressure inducement. Their sizes and morphologies are analyzed with X-ray diffraction (X...
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Article
High-Frequency Heterodyne Force Microscopy Investigations Of Copper Interconnects
A nondestructive methodology for characterizing Cu interconnects in integrated circuits (ICs) has long been sought and has motivated significant efforts regarding metrology tool development. Here, we present inve...
