Composites with a copper matrix attract the attention of researchers due to their ability combine high ductility, heat conductivity, and electrical conductivity hardness strength reinforcing phases. In this paper, we present results studying effect thermal deformation processing Сu-Ti-C-B composite produced by self-propagating high-temperature synthesis (SHS) on its deform plastically without failure. The consists reinforced particles titanium carbide TiC (sized up 1.0 μm) diboride TiB2 3.0...

The quality of finished products is determined at the stage compaction.High-pressure cold compaction sometimes fails to provide coalescence VT-22 high-strength titanium alloy powder particles.Particle governed by mechanical characteristics, spherical particle shape and hard oxide on particles powder.This results in low strength workpieces.To ensure a compact, additives with more plastic properties are used.Simulation applied find an optimum additional its volume.The process simulated use...

The paper studies the technology of deformation and heat treatment an aluminum-matrix composite material under nonstationary conditions, which is upsetting with gradual heating to near-solidus temperatures mild loading conditions. based on V95 aluminum alloy discretely reinforced 10% SiC particles. purpose study compare behavior samples analyze their microstructure different conditions thermal processing. structure studied by optical electron scanning microscopies. discloses rate relative...

A specific process of manufacturing vessel shell tabs, namely the method cold stamping is studied in this paper. Recommendations are proposed to gain proper technology spherical vessels with a volume above 600 cubic meters regard labor saving tabs on hydraulic press. The necessity having motivated by large quantity manual operations, direct influence conversion costs as whole. importance research connected multiple shape control being manufactured during and time-consuming point-by-point...

The paper provides the results of an experimental study into properties compressed and sintered compacts following powders: VT-22 high-strength titanium alloy manufactured by plasma spraying industrial production waste, PTM-1 grade hydrate-calcium method, PV-N70Yu30 nickel-aluminum alloy. It was shown that charge composition selection for composite blank manufacturing is connected with need to ensure optimization several competing target functions. relative density strength under axial...

The quality of finished products is determined at the stage compaction. High-pressure cold compaction sometimes fails to provide coalescence VT-22 high-strength titanium alloy powder particles. Particle governed by mechanical characteristics, spherical particle shape and hard oxide on particles powder. This results in low strength workpieces. To ensure a compact, additives with more plastic properties are used. Simulation applied find an optimum additional its volume. process simulated use...

Introduction. The use of equal-channel angular pressing (ECAP) metal powder makes it possible to obtain practically non-porous blanks with high hardness, a level accumulated deformation and the formation an ultra-fine-grained structure. A relevant issue for study semi-continuous ECAP process remains reliable assessment energy-power parameters prediction porosity compressed materials. This, in turn, is due need develop sufficiently accurate, simple mathematical models practical application....

Приводятся результаты исследования деформационного поведения металломатричного композита (ММК) на основе алюминиевого сплава с 10% SiC в диапазоне температур испытаний 470-570 °C и давлении образец начальный момент времени 4,8 МПа.Испытания проводились шахтной электропечи использованием спроектированного изготовленного устройства.В экспериментах осуществлялся нагрев образцов до фиксированной температуры (470, 500, 530 570 °C), а также обеспечивалась выдержка течение определенного при...

The paper studies the mechanical properties of pressed and sintered samples made titanium-based powders.Recommendations on selection optimal composition composite material are given basis analysis density compressive strength pieces.The is obtained by optimizing density, strength, quality, cost pieces.

The results of an experimental study the mechanical properties pressed and sintered briquettes consisting powders obtained from a high-strength VT-22 titanium alloy by plasma spraying with additives PTM-1 powder hydride-calcium method PV-N70Yu30 nickel-aluminum are presented. task is set for choice optimal charge material composition composite providing required characteristics cost semi-finished products items. Pareto values have been obtained.

The possibility of usingVT-22 alloy powder produced from extrusion waste is considered.It shown that it impossible to obtain high-quality pressing by the conventional method presssintering.The results experimental investigations mechanical properties briquettespressed and sintered compositions consisting powders VT-22 highstrength titanium with additives thePTM-1 PV-N70Yu30 nickelaluminum are given.A problem formulated for selecting optimal composition mixture composite material providing...

The object of research is a bimetallic composite material with thin intermediate layer aluminum. aim the work to determine features stress-strain state at interlayer boundaries steel-aluminum using computational exper-iment method and calculate separation resistance energy criterion. along joint delamination determined from results modeling de-formation axisymmetric samples made A series experiments varying critical rate elastic release under conditions, including combined influence low...

Intensive deformation is necessary to obtain products made of aluminum-matrix composite materials (AMCM) with the required level mechanical properties. To model behavior in non-stationary conditions thermo-deformation treatment, identification AMCM remains an urgent task. The use Johnson-Cook plasticity one approaches describing material fluidity. This paper aims at studying granulated high-strength aluminum alloy V95 Al–Zn–Mg–Cu system, reinforced SiC particles 10 % by weight. We...

Mathematical models and a hybrid modeling system are developed for the implementation of experimental-calculation method engineering analysis optimization plastic deformation inhomogeneous materials with purpose improving metal-forming processes machines. The created software solution integrates Abaqus/CAE, subroutine mathematical data processing, use Python libraries knowledge base. Practical application is exemplified by process extrusion bimetallic billet. results shown, material damage...

Compression curves are plotted for VT22 high-strength alloy powder under conditions of uniaxial compression at room temperature. The density the compacted briquette loading and unloading stages is determined. It demonstrated that strong interparticle bonds formed in area action shear deformation. results supposed to be used identify flow model material studied perform subsequent numerical modeling compaction process.

A computational and experimental method is proposed to determine the medium model for describing mechanical properties of powder particles a high-strength VT-22 titanium alloy obtained by plasma spraying in an inert gas jet. The based on indirect determination σs ~ ε strain hardening diagram (yield stress dependence plastic deformation). specimen fullscale tests was prepared as section filled into special resin. paper provides results Vickers indentation computer simulation this process...

Abstract Simulation modeling of the deformation under mechanical action on sample workpiece steel-aluminum bimetallic composite material with a thin aluminum intermediate layer was performed. The stress-strain state along boundaries joint at which layering occurs determined. A series computational experiments varying specific work value separation conditions implemented. level stresses, leading to compound, is estimated using energy criterion. dependence rupture strength ring contour varied...