Kylinich А.A.

Influence of Temperature-Temporal Pa¬rameters of Annealing on Structure and Mechanical Properties of Alloy АМг6л with Enhanced Maintenance of Silicon

In this paper we study the influence of temperature-temporal parameters of in-process annealing set on structure and mechanical properties of alloy АМг6л with 1 % of silicon admixtures. Melting is conducted in the laboratory resistance stove in graphite crucible. We use the following materials: aluminium А99, ligature Al–Mg, Al–Zr, Al Be, Al–Ti, Al–Si. The obtained standard samples 10 mm in diameter are annealed at different temperature-temporal parameters. Also, we determine their mechanical properties.

Influence of Temperature-Temporal Parameters of Fusion Treatment and Cooling Speed on Structure and Mechanical Properties of Alloys of АМг6л and АМг11

The paper establishes the influence of temperature-temporal parameters of fusion treatment in the liquid state and cooling speed during crystallization on the structure and mechanical properties of АМг6л and АМг11 casting alloys. Melting is conducted in the resistance stove in graphite crucible. We use the following materials: aluminum of А99 type and such ligatures as Al–Mg, Al–Zr, Al–Be, Al–Ti, Al–Si. Metallic fusions of the explored alloys are kept at various temperatures and self-control time and poured out in different kinds of molds.

The Structure and Mechanical Properties of Al-6 % Mg-2 % Zn-0,5 % Fe-0,5 % Alloys with Additions of Manganese after Different Modes of Annealing

This paper discusses the influence of up to 0,7 percent of manganese and various modes of annealing on the phase composition, the structure and a level of mechanical properties of Al-6 % Mg-2 % Zn-0,5 % Fe-0,5 % Si alloy. More compact (Fe, Mn)Al6 phase is formed instead of FeAl3 phase at Mn/Fe = (0,4–0,5) optimal correlation. Thus alloy plasticity rises by 40–50 % at the insignificant increase of durability.

Mechanical Properties of Casting Alloys of Al–Mg System after Natural Senescence

We investigate the influence of natural senescence on mechanical properties of АМг5К, АМг6л and АМг10 alloys. We determine that the level of temporal resistance of the break rises to 15 % and 5 %, and the lengthening of alloys rises to 40 % and 10 % for АМг5К and АМг6л alloys after the natural senescence in the course of three years. Accordingly, the level of temporal resistance of the break of АМг10 alloy rises to 3 % and the relative lengthening falls to 70 % after the natural senescence in the course of three years.

Phase-structural composition and mechanical properties of alloy of CA4Мg with admixtures of iron and beryllium

The paper under consideration investigates the influence of beryllium on the phase-structural composition and the mechanical properties of CA4Мg alloy containing 0,5 percent of iron. The set optimum beryllium alloy content provides the formation of a more compact iron-bearing phase and the increase in the mechanical properties level.

Phase composition, structure and mechanical properties of АМГ6Л alloy with admixtures of iron and beryllium

The paper studies the influence of admixtures of iron and beryllium on the phase composition, structure and mechanical properties of АМг6л alloy after casting. We determine the optimum content of iron and beryllium, which provides the maximal level of mechanical properties of the alloy under study. We also define the optimum correlation of iron and beryllium in an alloy that conform to requirements of the state standard.

The Specificity of Forming the Structure and Mechanical Properties of АМг6л Alloy with the Enhanced Content of Silicon Admixtures after Casting and Heat Treatment

This paper studies the influence of silicon admixtures with the content up to 2 % on the phase-structural composition of АМг6л alloy after casting in the metallic form and heat treatment. Through experiments performed, we determine that it is possible to increase the content of silicon admixtures from 0,2 to 0,5 % for the АМг6л alloy used after casting in the metallic form. It can be increased under the conditions of conserving a high level of mechanical properties when the magnesium content in an alloy is within the limits of 6–6,5 %.

The specificity of iron and silicon influence on forming the phase composition, structure and mechanical properties of casting alloys of system Al–Mg–Zn

The study determines the influence of iron and silicon admixtures, infused both separately and jointly, on formation of the phase composition, structure and mechanical properties of casting alloys of the system of Al–Mg–Zn with various content of magnesium and zinc. The research results show that silicon lowers mechanical properties of alloys at any magnesium content, iron admixtures decrease durability and plasticity of alloys under study at high magnesium concentration, they also decrease the alloys plasticity by 0,5 at low magnesium concentration.

The mechanical properties of alloy VAL11 at various treatment modes

The paper reports on the influence of temperaturetime treatment parameters of fusion and cooling rate at crystallization on a structure and level of the mechanical properties of the alloy VAL-11. The experimental results obtained demonstrate the optimum technological treatment parameters of the alloy under study, which allow increasing the level of its durability characteristics by 20% and plasticity by three times.