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Showing 1 to 20 of 78 for “"Metal alloys"”.
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Atomistic simulations of radiation damage in amorphous metal alloys
… response mechanisms in irradiated crystalline alloys, comparatively little is known regarding the mechanisms of radiation damage in amorphous alloys. Knowledge of collision cascade dynamics is lacking, both with respect to the possibility of sub-cascade formation and concerning the types of …
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A study on the relative runability of grid metal alloys
… properties of various commercially used grid-metal alloys and to study other alloys that promise to be of value in the battery manufacturing industry. In previous publications (1) it has been shown that zinc has a very market effect in raising the surface tension of type metals when it is …
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An electrochemical investigation of the chemical diffusivity in liquid metal alloys
The liquid metal battery has been shown to be a viable candidate for grid-scale energy storage, due to its fast kinetics and ability to be constructed from economically feasible materials. Various of the liquid metal couples that form high stable voltages, such as the calcium chemistries, are rate …
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Colours and other optical properties of binary noble metal-noble metal alloys
… the optical properties of Ag-Au, Ag-Cu and Au-Cu alloys and the results are interpreted in terms of alloy colour and electronic properties. Variation of colour with alloy composition is placed on a quantitative basis for the first time and discussed in terms of the most fundamental properties of …
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First-principles approach to screening multi-component metal alloys for hydrogen purification membranes
Metal membranes play a vital role in hydrogen purification. Defect-free membranes can exhibit effectively infinite selectivity for hydrogen. Membranes must meet multiple objectives, including providing high fluxes, resistance to poisoning, long operational standards, and be cost effective. Alloys …
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Stress corrosion cracking behavior of friction stir processed ultrafine grained light metal alloys
… of Al-Mg, Al-Mg-Sc, Mg-Al-Zn and Mg-Y-RE alloys has been studied. An attempt has been made to establish correlation between processing parameters and the subsequent microstructural evolution especially matrix grain size on the corrosion and stress corrosion properties of the alloys. A …
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Outer-core emission spectroscopy of the heavy alkalis and alkali-alkali metal alloys
… K (n=3), Rb (n=4), and Cs (n=5), both as pure metals and when alloyed in Li, Na, and each other. The results for pure Rb and Cs allow the first comparisons of emission profiles, core lifetimes, and phonon broadening widths through the series of alkali metals Na, K, Rb, Cs. The emission profiles …
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On the fracture and fatigue crack growth of thin sheets of nanocrystalline metal alloys
Fatigue crack growth was investigated in thin sheets of electrodeposited nickel–1.6% cobalt (Ni-Co) and rolled Inconel 718. Digital image correlation (DIC) was used to determine the crack opening displacement profiles, and the entire crack displacement fields. These parameters were then used to …
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Synthesis and properties of nanostructured metal alloys for hydrogen separation and membrane reaction applications
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1997.
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Exploration of Small-Scale Solid-State Additive Manufacturing for the Repair of Metal Alloys
… inevitably breaks. When dealing with a broken metallic part, one can either replace it or repair it. Repairing is generally preferred so long as it is not too costly. Unfortunately, repairing a component is often more expensive due to the material being difficult to work with or the geometry …
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Investigation of the mechanical properties and phase stability of Ti-transition metal alloys using first-principle calculations
… mixed (Ti0.5V0.5)B as promising candidates for metallic boride compositions for Ti-based alloys and bulk ceramics. Among these two ternary mixed monoborides, we focus on β-stabilizer Mo and study toughness of BCC phase Ti-Mo alloys to understand the effect of solutes on the plastic deformation. …
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Mechanical design for advancing small-scale solid state additive manufacturing to enable deposition of commercial metal alloys
… successful deposition of high-strength alloys, like marten-sitic steel and aluminum, addressing challenges such as material buckling, heating, and tool stability. Key achievements include optimizing process parameters for multi-track and multi-layer printing, enabling printing under …
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Improving radiation resistance of metal alloys through the addition of multiple synergistic solutes: Atomistic simulations and experimental analysis
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-08-01
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Feasibility study of micro-laser induced breakdown spectroscopy applied to lead identification in metal alloys and environmental matrices
… inorganic identification has been explored in metals, metal alloys, soil and paint pellets. This study employed a passively Q-switched infrared Microchip laser, in conjunction with a time-integrated miniature charged-couple device array spectrometer. During the period of this research, the …
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Variations in grain boundary segregation for nanocrystalline stability and strength
In the last few decades, nanocrystalline metals have been of increasing interest. Their ability to show increased yield strength and uniform structure show them to be potentially useful in many applications. Additionally, nanocrystalline metals have become more easily manufactured in recent years, …
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Cavitation erosion of engineering materials
… engineering materials have been utilized, from metal alloys, plastics, ceramics to composiles. These were procured from various industrial and research establishments. The metal alloys which were supplied in various condition of heat treatments, ranged from aluminium alloy to nitrided and tool …
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Potential applications of a toughened silicon-based alloy
… long been used as an alloying element in various metal alloys, in engineered ceramics, and in the semiconductor industry. However, due to its intrinsic low fracture toughness, it is generally perceived as a poor choice of material for mechanical applications. This study explores some potential …
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