Selection of Elements at the Dissolution of Heat Resistant Nickel Alloys in Mineral Acid Solutions

Thermodynamic modeling of the interaction of a heat-resistant nickel alloy containing refractory rare metals with hydrochloric, sulfuric and nitric acids with a temperature change in the range of 20-100 ∘ C and a concentration of 50 to 150 g / dm3 at a pressure of 1 atm was carried out. The thermodynamic assessment data were confirmed in experiments on the anodic dissolution of the alloy in sulfate solutions. According to the results of x-ray phase analysis of the sludge, it was revealed that tungsten in the form of a solid solution in nickel passes to this product. Also, tantalum and niobium pass into the slurry in the form of oxides. Mostly, Re, Co, Cr passed into the electrolyte solution. The results of the study can serve as a scientific basis for the development of promising technologies for processing metal waste from heat-resistant alloys. Keywords: thermodynamic modeling, heat resistant nickel alloy, rare elements, mineral acids, dissolutio

INFLUENCE OF GROUP V METALS ON PHASE FORMATION AND INTERFACIAL PROPERTIES OF TITANIUM-ALUMINUM ALLOYS

A theoretical and experimental study of the regularities of phase formation in the Ti-Al – Nb(Ta, V) alloy obtained by the joint aluminothermal reduction of metals from oxides is car-ried out. The physicochemical properties of the alloys were studied

PREDICTION OF PHASE FORMATION OF HIGH-ENTROPY ALLOYS OF GROUPS IV AND V

A computer simulation of a high-entropy Al Ti Zr V Nb alloy was performed using the ab-initio molecular dynamics method for phase formation.Работа выполнена в соответствии с государственным заданием ИМЕТ УрО РАН, вычисления производились на кластере «Уран» ИММ УрО РАН

HCV-associated mixed cryoglobulinemia and b-cell non-Hodgkin's lymphoma - pathogenetically related problems

Hepatitis C virus (HCV) is a global population problem due to its high prevalence, usually late diagnosis, the difficulties of treatment. In the prognosis of patients with HCV not only hepatic, but increasingly frequent of extrahepatic HCV manifestations, such as mixed cryoglobulinemia (CG), are important. Mixed CG is currently considered as a B-cell benign lymphoproliferative disorders. The role of HCV virus in the pathogenesis of lymphoproliferative diseases is confirmed by a large number of epidemiological studies, as well as by the effectiveness of antiviral therapy in patients with non-Hodgkin’s lymphoma (NHL). The purpose of the review was to provide an overview of recent literature data and the meta-analysis of epidemiological data explaining the role of HCV in the development of NHL. The review also discusses the treatment for HCV-associated NHL by antiviral therapy or other therapeutic options, such as chemotherapy

INTERFACIAL INTERACTION IN Ti -Al -(Nb, Ta, V) SYSTEM

Physical and chemical properties of Ti-Al - (Nb, Ta, V) alloys obtained by joint aluminothermal reduction of metals from oxides are studied. The influence of melting point and concentration of Nb, Ta, V on density and surface tension of alloys was studied

ALUMINOTHERMIC SYNTHESIS OF HIGH ENTROPY ALLOYS FROM METALS IV AND V GROUP

The analysis of literature data on the available methods for producing high entropy alloys is carried out. The technique of aluminothermic reduction of metals from oxides in the synthesis of the equiatomic AlNbTiVZr alloy was tested.Работа выполнена по Государственному заданию ИМЕТ УрО РАН с использованием оборудования ЦКП «Урал-М»

INFLUENCE OF CONDITIONS FOR METALLOTHERMIC REDUCTION OF TITANIUM DIOXIDE ON THE PHASE FORMATION OF TITANIUM ALUMINIDES

Phase formation features at aluminothermal reduction of Ti from their dioxide were studied using a number of methods. Al interaction with TiO2 proceeds through the stage of TiO formation. It is characterized by the formation TixAly intermetallics of different composition depending on Al/TiO2 ratio