scholarly journals FEATURES OF CARBON GRAPHITE IMPREGNATION WITH ALUMINUM ALLOY

2020 ◽  
pp. 61-65
Author(s):  
V. A. Gulevsky ◽  
N. Yu. Miroshkin ◽  
S. N. Tsurikhin ◽  
N. A. Kidalov
Keyword(s):  
Composite Material ◽  
Electronic Structure ◽  
Aluminum Alloy ◽  
Pore Surface ◽  
Aluminum Melt ◽  
Impregnation Process ◽  
Conduction Electrons ◽  
Nickel Chromium ◽  
Combined Action ◽  
Porous Frame

The process of forming a composite material carbon-graphite-aluminum by impregnating a porous frame AG-1500 with aluminum melt at a temperature of 650С is studied. The redistribution of elements of the impregnating alloy is established. it is shown that the transition of silicon, Nickel, chromium, and iron from the aluminum melt to the «melt - pore surface of carbon graphite» is determined not by the mechanism of chemical localization of conduction electrons, but by the rearrangement of the electronic structure of components during crystallization. In this case, it is possible to change the solubility of the melt elements in aluminum, as a result of the combined action of pressure and temperature on it during the impregnation process.

scholarly journals MORE DETAILSABOUT IMPREGNATION OF CARBON GRAPHITE WITH ALUMINUM

2020 ◽  
pp. 77-82
Author(s):  
V. A. Gulevsky ◽  
N. Yu. Miroshkin ◽  
S. N. Tsurikhin ◽  
O. Yu. Gundrov
Keyword(s):  
Composite Material ◽  
Aluminum Alloy ◽  
Protective Coating ◽  
Open Porosity ◽  
Matrix Alloy ◽  
Lead Alloy ◽  
Inner Surface ◽  
The Matrix ◽  
Porous Frame ◽  
Constant Heating

The process of forming a composite material carbon - graphite-aluminum alloy by impregnation of a porous frame AG-1500 is studied. The technology of filling the open porosity of carbon graphite with a metal melt in a device for impregnation in the mode of constant heating of the furnace is described. The method of applying a protective coating to the inner surface of the pores is shown. It is possible to seal the matrix alloy AK12 in the pores of AG-1500 with lead. It is shown that such processing allows to compact the aluminum alloy and modify it due to the comprehensive pressure of the lead alloy.

REYNOLDS R-301

Alloy Digest ◽  
1954 ◽  
Vol 3 (5) ◽  
Keyword(s):  
Composite Material ◽  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength ◽  
Heat Treating ◽  
Corrosion Resistant ◽  
Bearing Strength ◽  
High Strength Aluminum Alloy

Abstract Reynolds R301 is a composite material, constituted of a core of high strength aluminum alloy, clad with a corrosion-resistant aluminum alloy. This datasheet provides information on composition, physical properties, elasticity, tensile properties, and compressive, shear, and bearing strength as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: Al-16. Producer or source: Reynolds Metals Company.

Interaction of elements in carbon-graphite—Al—Mg—Zn—Cu melt system under combined action of temperature and pressure

2021 ◽  
pp. 514-518
Author(s):  
N.Yu. Miroshkin ◽  
V.A. Gulevsky ◽  
S.N. Tsurikhin ◽  
A.I. Bogdanov ◽  
L.M. Gurevich ◽  
...  
Keyword(s):  
Matrix Alloy ◽  
Impregnation Process ◽  
Active Elements ◽  
Cu Alloy ◽  
Inner Surface ◽  
The Matrix ◽  
Combined Action ◽  
Temperature And Pressure ◽  
The Difference ◽  
Titanium Compounds

Redistribution of chemically active elements is established on its inner surface of pores and at the interface with the alloy when impregnating carbon-graphite framework with Al—Mg—Zn—Cu alloy at temperature of 800 °C under pressure of up to 3 MPa. In this case, change in the solubility of melt elements in aluminum is possible as result of the combined action of temperature and pressure in the impregnation process, created due to the difference in the coefficients of thermal and thermal expansion of the matrix alloy, and the material of the impregnation device during impregnation. Titanium compounds are found in the pores filled with metal that are not added to the matrix alloy, but are formed as result of the contact of the matrix alloy melt with the walls of the impregnation device.

Recycled Aluminum Alloy Matrix Composites with Artificial Pellets Made of Incineration Ashes

2007 ◽  
Vol 561-565 ◽  
pp. 1653-1656
Author(s):  
Yoshitaka Iwabuchi ◽  
Isao Kobayashi
Keyword(s):  
Thermal Conductivity ◽  
Composite Material ◽  
Aluminum Alloy ◽  
Aluminum Alloys ◽  
Matrix Composites ◽  
Trial And Error ◽  
Alloy Matrix ◽  
Research Article ◽  
Aluminum Alloy Matrix ◽  
Incineration Ashes

This research article describes the newly developed composite material using the artificial pellets made of incineration ashes and recycled aluminum alloys. The factor affecting its various properties was investigated and discussed. Through trial and error, the hybrid preform with good soundness and preferable dispersion of the pellets could be obtained. The density and compression strength and thermal conductivity were measured in comparison of other structural materials.

A CRASHWORTHINESS SIMULATION FOR A LIGHT AIRCRAFT CONSTRUCTED OF COMPOSITE MATERIALS

2015 ◽  
Vol 39 (4) ◽  
pp. 829-843 ◽  
Author(s):  
Pu-Woei Chen ◽  
Kuan-Jung Chen
Keyword(s):  
Composite Material ◽  
Aluminum Alloy ◽  
Composite Materials ◽  
Fiber Composite ◽  
Impact Angle ◽  
The Finite Element Method ◽  
Dynamic Impact ◽  
Carbon Fiber Composite ◽  
Impact Speed ◽  
Impact Simulations

This study analyzes the crashworthiness of a light aircraft that is constructed from composite materials. The finite element method is employed to conduct dynamic impact simulations on carbon fiber composite fuselages. The results show that the safe impact speed for an aluminum alloy cockpit crashed at a 30° impact angle is 9.59 m/s, but a cockpit made of composite material can withstand a speed greater than 18.05 m/s. The safe impact angle for an aluminum alloy cockpit is 16.56°, but that for a composite cockpit is 84.9°. The safety crash zone for a composite material cockpit is 160% greater than that for an aluminum alloy cockpit.

Effect of Melt Purification on Microstructure and Mechanical Properties of 3003 Aluminum Alloy

2018 ◽  
Vol 921 ◽  
pp. 262-268
Author(s):  
Gui Qing Chen ◽  
Gao Sheng Fu ◽  
Jun De Wang ◽  
Kai Huai Yang ◽  
Shao Yi Lin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Impurity Content ◽  
Aluminum Melt ◽  
Microstructure And Mechanical Properties ◽  
Alloy Strength ◽  
Dispersed Inclusions ◽  
Strength And Plasticity

The 3003 aluminum alloy melt was treated with three types of melt purification, and the effect of melt purification on the microstructure and mechanical properties of the alloy was investigated. The results show that the impurity content of 3003 aluminum alloy with untreated (UT) reached 0.6801 %. After the process of conventional purification treatment (CPT) and efficient purification treatment (EPT), the impurity content of the alloy decreased significantly, and the fluidity of aluminum melt was improved. Finely dispersed inclusions particles can promote nucleation, refine the size of the cast crystal. Alloy strength and plasticity have increased using the process of CPT and EPT, in particular, EPT is the most obvious. It shows that the purity of aluminum melt plays a key role in the mechanical properties of the alloy.

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