The evaluation of texture as a function of recrystallization has been characterized for directly cold rolled Al-6Mg, Al-6Mg-0.4Sc and Al-6Mg-0.4Sc-0.2Zr alloys. Samples were annealed isothermally at 400 °C for 1 to 240 minutes to allow recrystallization. Recrystallization kinetics of the alloys is analyzed from the micro-hardness variation. Isothermally annealed samples of aluminum alloys were ...

In this study, duplex surface treatments were used to prepare a ZrO2/Cr bilayer coating on zirconium alloy cladding for enhancing the wear and corrosion behaviors. The cross-section morphology of coated Zr-4 was characterized; results show that Cr- ZrO2/Cr-coated samples had similar morphology, more obvious undulates could be observed than pure Cr owing rough plasma electrolytic oxidation coati...

This article described the protective properties of Cr coatings with a barrier layer composed ZrO2/Cr multilayers deposited onto E110 zirconium alloy. The multilayer thickness 100, 250, and 750 nm single-layer (1.5 µm) ZrO2 were obtained by multi-cathode magnetron sputtering in Ar + O2 atmosphere. Then, cracking resistance oxidation behavior studied under conditions thermal cycling (1000 °C) ai...

background: some particular areas contain natural radionuclide at levels much higher than those usually present in earth's crust. the radiological impact of the use of zirconium ore in zirconium industry is due to internal exposure of the lung by alpha particles and external exposure of the body by the gamma rays. the result of gamma spectrometry measurement of the concentrations of the na...

Aqueous sodium borohydride (NaBH4) is well known for its reducing property and well-established for the development of metal nanoparticles through reduction method. In contrary, this research paper discloses the importance of aqueous NaBH4 as a precipitating agent towards development of porous zirconium oxide. The boron species present in aqueous NaBH4 play an active role during gelation as wel...

The separation of hafnium from zirconium using tributyl phosphate offers interesting alternatives to present methods for making reactor-grade zirconium. Feed solution for the extraction step can be prepared from the reaction product of caustic and zircon sand. The purified zirconium can be converted into a variety of compounds, depending on the process chosen for reduction to the metal. It may ...

Titanium and zirconium were immersed in Hanks’ solution with and without calcium and phosphate ions, and the surfaces were characterized with X-ray photoelectron spectroscopy (XPS) to determine the mechanism of calcium phosphate formation on titanium in simulated body fluids and in a living body. In addition, they were cathodically polarized in the above solutions. As a result, neither calcium ...

Bismuth–lithium alloys are considered primary candidates for the reductive extraction step in on-line reprocessing of molten salt reactor fuel. The corrosion behavior molybdenum-based and Hastelloy® B-3 alloy (taken comparison) was examined here a liquid Bi–Li (5 mol.%) at 650 °C. MoW10, MoW30, TZM corrosion-resistant were studied as prospective construction materials holding bismuth–lithium al...

Many materials that are usually found in the earth's crust contain small but measurable amount of naturally occurring radioactivity (NORM). Some particular ores contain natural radionuclide at levels much higher those usually present in earth's crust; and are also subject to radioisotope enrichment, during technological process, known as technologically enhanced natural radioactivity (TENORM). ...