Nanocrystalline Structure
Wear Resistance of Steels with Surface Nanocrystalline Structure Generated by Mechanical Pulse Treatment
... The influence of the surface mechanical-pulse treatment based on high-speed friction with a rapid cooling by the technological environment on the wear resistance of medium- and high-carbon steels was considered. The ...
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Effect of Nanocrystalline Structure on the Corrosion of a Fe20Cr Alloy
... a nanocrystalline structure in steels described above were considerably different from those employed for producing microcrystalline alloy to which they were ...produce nanocrystalline Fe-Cr alloys ...
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Room Temperature Deformation Behavior of Zn 22 mass%Al Alloy with Nanocrystalline Structure
... including nanocrystalline structure produced with Thermo Mechanical Controlling Process (TMCP) technology has been characterized over a wide range of strain rates from 10 −6 to 10 −1 s −1 at tem- peratures ...
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Formation of Nanocrystalline Structure at the Surface of Drill Hole in Steel
... Microstructure of martensite steel near drill hole surface was investigated. The microstructure of drill hole surface can be divided into 3 layers with depth. From top surface, nanocrystalline layer, equiaxed ...
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Formation of Nanocrystalline Structure in Steels by Air Blast Shot Peening
... of nanocrystalline structure (NS) on the surface of bulk steel samples by a particle impact and air blast shot peening techniques was ...studied. Nanocrystalline layers with several microns thick ...
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Study of nanocrystalline structure and micro properties of zro2 powders by using rietveld method
... crystal structure refinement method, from powder diffraction ...a structure from the powder diffraction ...trial structure, calculating a powder diffraction profile from it and then comparing it with ...
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Nanocrystalline structure and Mechanical Properties of Vapor Quenched Al Zr Fe Alloy Sheets Prepared by Electron Beam Deposition
... or nanocrystalline microstructures and exhibit high strengths of 1000- 1500 ...micro- structure, however, has not enough thermal stability and the tensile strength decreases after heat treatment at above ...
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Formation of Surface Corrosion Resistant Nanocrystalline Structures on Steel
... with nanocrystalline structure could be exploited under simultaneous action of mechanical loading and corrosion environments; therefore, their corrosion resistance is ...Surface nanocrystalline ...
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Superior Strength in Ultrafine Grained Materials Produced by SPD Processing
... a nanocrystalline structure with a grain size less than 100 nm in a number of metals and alloys by means of HPT, 19,20) for SPD processing by ECAP and HPT it is typical to form ultrafine-grained structures ...
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Effect of Thiourea on the Nanocrystalline-Copper Coating Prepared by Jet Electrodeposition
... In comparison, adding 10 mg/L thiourea in Fig. 5, when the deposition layers increase from 400 to 1000 and even 2800, the deposit surface morphology continually remains unchanged and flat without cell-like particles ...
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Ultra High Pressure Consolidation of Ball Milled Nanocrystalline TiTaNb Alloys
... an insert shows diffused ring confirming the nanocrystalline state. The high resolution microscopy of milled powders has shown that depending on composition of powders the structure was composed of a mixture ...
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Fundamentals of interface phenomena in advanced bulk nanoscale materials
... At the present time, nanoscale materials can be rationally designed to exhibit novel and significantly improved physical and chemical phenomena and processes due to their nanocrystalline structure. The ...
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Microstructure of Rapidly Solidified High Strength Al94V4Fe2 Alloy
... nanocomposite structure in the alloy studied could be mainly due to three factors, namely, (a) nanocrystalline structure of -Al leading to Hall-Petch type strengthening, (b) precipitation ...
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Effect of β-cyclodextrin as Organic Additive on Pulse Electrodeposition of Nanocrystalline Ni-W Coating
... Ni-W nanocrystalline coatings were obtained in the plating bath with and without containing ...grain structure and crystals orientation in film state was identified by X-ray diffraction (XRD, PANalytical ...
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Fabrication of Nanostructured Objects by Thermal Vacuum Deposition of Ge Films onto (100)GaAs Substrates
... All of them have a grain, polycrystalline, structure. But characteristic grain sizes turn out to be different depending on the film thickness. Distributions of the effective lateral grain sizes are presented in ...
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Influence of Calcination Temperature on the Structure and Porosity of Nanocrystalline SnO2 Synthesized by a Conventional Precipitation method
... The aim of this article is to characterize the nanocrystalline tin dioxide synthesized by the conventional precipitation method. The effect of calcination temperature on the crystallite size, lattice distortion ...
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Strategy for Electrodeposition of Highly Ductile Bulk Nanocrystalline Metals with a Face Centered Cubic Structure
... effect 13,14) in the nanocrystalline regime. By contrast, ductility remains less well understood, and most nanocrystal- line metals do not exhibit high ductility and perform poorly in tensile tests. 1518) Two ...
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Atomistic Simulation of Shear Mode Deformation of Nanocrystalline Copper with Different Grain Sizes
... Many interesting phenomena are also found out in the mechanical properties of the nanocrystalline materials. 5) One of the dif fi culties for the mechanical measurement of nanocrystals is that the sample with small ...
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Macroporous WO3 Thin Films
... Photooxidation of Water Using Nanocrystalline WO3 Under Visible Light. International 258[r] ...
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Optical Studies and Photovoltaic Performance of Nanocrystalline Titanium Dioxide Sensitized with Local Dye
... Nanocrystalline titanium (iv) oxide paste has been deposited on Fluorine doped tin oxide glass substrate by the blade method. The deposited film was subjected to thermal treatment to obtain an electrode foe a ...
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