Verin A.S. et al. Peculiarities of Gating System and Ceramic Mold in Casting Gas-Turbine Engine Blades with a Gradient-Functional Structure
The researching principle of a pouring system is described, with particular reference to gas-turbine blades obtained by dosed directional solidification (DDS) method Ni₃Al-NiAl-Al₂O₃ -base with gradient-functional characteristics. The possible of using a double-parts combination of the ceramic mold is argued. The some data are shown to use DDS method for obtaining turbine blades from nickel superalloys.

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Nazarenko V.R. Use of Damascus Steel as a Wear-Resistant Material for Making Castings
A process of making Damascus steel under industrial conditions has been developed. It has been shown that the wear resistance of steel is affected not only by its hardness, but also by its microstructure. The applicability of Damascus steel instead of alloy steels, alloys and wear-resistant surfacing materials has been investigated.

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Nikitin V.I. From the History of the Heredity Problem
The article gives a detailed historical and objective analysis of the heredity phenomenon, a chronology of publications and conferences on that subject. The author dwelled on the development stages of the heredity theory, narrated about specialists who dealt with that problem. Results of scientific work and its practical realization have been formulated.

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Georgiy Vladimirovich Akimov - the Founder of the Scientific School of Metals and Alloys Corrosion
In 2009 we will see the 80th anniversary of the foundation of the A.N. Frumkin Institute of Physical and Electrical Chemistry at the Russian Academy of Sciences. The famous metal scientist, founder of the domestic school of metals and alloys corrosion, corresponding member of the USSR's Academy of Sciences, G. V. Akimov had worked at that Institute for more than 10 years. He headed the Institute from 1949 to 1953. G.V. Akimov had started his labor activity in the aircraft industry - at TsAGI (from 1926) and then at VIAM (from 1932).

Jessberger A. Briquetting of Cast Iron Chips
The briquetting of cast iron chips can be highly profitable for machining companies, as earnings of €30 to €100 per tonne can be achieved. Foundries with their own machining workshops benefit from cost savings of up to €100 per tonne of briquetted material. Briquettes can be used in cupola furnaces. If certain charging rules are adhered to they are also very suitable for use in medium and mains frequency induction furnaces. The properties of briquettes are similar to those of solid scrap and they offer a range of advantages in terms of storage and transportation. Briquette production at the point at which the chips are generated guarantees consistent best quality. The direct supply of briquettes from the manufacturer to foundries ensures maximum transparency and traceability.

Sandomirskiy S.G. Possibility of Controlling Structural Parameters of Iron Castings
The physical basics of the difference in magnetic properties of cast irons with different structures, and problems of controlling castings structure that can be resolved by using their magnetic parameters have been analyzed. Recommendations on the application of control means are given.

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Smykov A.F. et al. Computer-Aided Design of the Process of Making High-Temperature Alloy Ingots in Ingot Molds
A mathematical model for designing the process of formation of ingots from high-temperature alloys in an ingot mold providing for their directional solidification and continuous melt feed by the ingot height is proposed.

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Khidasheli N.Z. et al. Effect of Treatment Conditions on the Characteristics of Wrought Bainitic Irons
Complex investigation on the effect of combination of high-temperature thermo-mechanical (HTTM) treatment and austempering processes on the processes of isothermal bainitic transformation and parameters of products of austenite transformation in low-silicon ductile iron. The optimum combination of high strength properties of DADI is caused by the ultrafine dispersion of the microstructure and the variable content of retained (after phase transformation) austenite; this indicates a higher overloading capacity of DADI.

references    author's details

Georgiy Vladimirovich Akimov - the Founder of the Scientific School of Metals and Alloys Corrosion

Jessberger A. Briquetting of Cast Iron Chips

Nikitin V.I. From the History of the Heredity Problem

Khidasheli N.Z. et al. Effect of Treatment Conditions on the Characteristics of Wrought Bainitic Irons

Nazarenko V.R. Use of Damascus Steel as a Wear-Resistant Material for Making Castings

Sandomirskiy S.G. Possibility of Controlling Structural Parameters of Iron Castings

Verin A.S. et al. Peculiarities of Gating System and Ceramic Mold in Casting Gas-Turbine Engine Blades with a Gradient-Functional Structure

Smykov A.F. et al. Computer-Aided Design of the Process of Making High-Temperature Alloy Ingots in Ingot Molds

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