Relationship between the phase composition and properties of a hardened layer produced in microarc oxidation of aluminum alloys

1991 ◽  
Vol 27 (3) ◽  
pp. 169-171
Author(s):  
V. A. Fedorov ◽  
N. D. Velikosel'skaya
Keyword(s):  
Phase Composition ◽  
Aluminum Alloys ◽  
Microarc Oxidation ◽  
Hardened Layer

scholarly journals The influence of the conditions of microplasma processing (microarc oxidation in anode­cathode regime) of aluminum alloys on their phase composition

2017 ◽  
Vol 5 (12 (89)) ◽  
pp. 52-57 ◽  
Author(s):  
Valery Belozerov ◽  
Oleg Sоbоl ◽  
Anna Mahatilova ◽  
Valeria Subbotinа ◽  
Taha A. Tabaza ◽  
...  
Keyword(s):  
Phase Composition ◽  
Aluminum Alloys ◽  
Microarc Oxidation

Investigation of the Effect of Implantation of Aluminum Alloys by Gas and Metal Ions on the Structure and Phase Composition of the Implanted Layer

2021 ◽  
Vol 887 ◽  
pp. 235-241
Author(s):  
Viktor V. Ovchinnikov ◽  
Irina A. Kurbatova ◽  
Elena Vladimirovna Luk'yanenko
Keyword(s):  
Phase Composition ◽  
Aluminum Alloys ◽  
Radiation Dose ◽  
Cellular Structure ◽  
Ion Current ◽  
Subgrain Structure ◽  
Entire Volume ◽  
Average Width ◽  
Cladding Layer ◽  
Ion Current Density

The article presents studies of the structure and phase composition of aluminum alloys after ion implantation. It is shown that the effect of accelerated ions (Cu + Pb) (E = 30 keV, j = 100 μA / cm2) on an alloy without a cladding layer already at a dose of 1016 cm - 2 leads to the formation of a developed subgrain structure in the initially deformed alloy. With an increase in the ion current density and radiation dose, the cellular structure of the implanted aluminum alloys becomes more regular - well-formed cells are observed practically throughout the entire volume of the sample under study. The average width of the dislocation-free regions reaches 2.5 μm with the width of the boundaries not exceeding 0.6 μm.

Phase composition of the products of encrustation of the channels of magnetodynamic feeders for aluminum alloys

Refractories ◽  
1988 ◽  
Vol 29 (3-4) ◽  
pp. 190-193
Author(s):  
S. V. Blokhina ◽  
A. V. Kosinskaya ◽  
Zh. D. Bogatyreva
Keyword(s):  
Phase Composition ◽  
Aluminum Alloys

scholarly journals The formation of a surface layer during microarc oxidation of aluminum alloys

2015 ◽  
Vol 70 ◽  
pp. 012002 ◽  
Author(s):  
A Ye Mikheev ◽  
A V Girn ◽  
E V Vakhteev ◽  
E G Alekseeva ◽  
D V Ravodina
Keyword(s):  
Surface Layer ◽  
Aluminum Alloys ◽  
Microarc Oxidation

Scientifically Based Choice of Heat-Resistant Cast Aluminum Alloys of New Generation

2013 ◽  
Vol 372 ◽  
pp. 49-53 ◽  
Author(s):  
Aliya Amenova ◽  
Nikolay Belov ◽  
Dauletkhan Smagulov ◽  
Ainagul Toleuova
Keyword(s):  
Phase Composition ◽  
Aluminum Alloys ◽  
Heat Resistance ◽  
Phase Analysis ◽  
Base Alloy ◽  
Cast Aluminum ◽  
Heat Resistant ◽  
Cast Aluminum Alloys ◽  
New Generation

The phase composition of the AlNiMnFeSiZr system is analyzed as applied to heat resistant nikalines (aluminum alloys of a new generation based on Ni containing eutectic), which are strengthened by the Al3Zr (L12) nanoparticles. It is shown that the presence of iron and silicon considerably complicates the phase analysis when compared with the AN4Mts2 base alloy. Silicon strongly widens the crystallization range, which increases the tendency of the alloy to form hot cracks during casting. It is shown that economically doped nikaline AN2ZhMts substantially exceeds the most heat resistant cast aluminum alloys of the AM5 grade in the totality of its main characteristics (heat resistance and mechanical and production properties).

The influence of chemical and phase composition on mechanical, tribological and electrical properties of Silver-Aluminum alloys

2018 ◽  
Vol 119 ◽  
pp. 680-687 ◽  
Author(s):  
Mamoun Taher ◽  
Fang Mao ◽  
Pedro Berastegui ◽  
Anna M. Andersson ◽  
Ulf Jansson
Keyword(s):  
Phase Composition ◽  
Aluminum Alloys ◽  
Electrical Properties

scholarly journals The effect of electrolysis conditions during microarc oxidation on the phase-structural state, hardness and corrosion resistance of magnesium alloys

2020 ◽  
Vol 21 (3) ◽  
pp. 545-551
Author(s):  
V.V. Subbotina ◽  
V.V. Belozerov
Keyword(s):  
Corrosion Resistance ◽  
Phase Composition ◽  
Magnesium Alloys ◽  
Protective Coatings ◽  
Microarc Oxidation ◽  
High Hardness ◽  
Ceramic Coatings ◽  
Functional Layer ◽  
Different Types ◽  
Spinel Mgal2o4

By the method of microarc oxidation for different types of electrolytes (which include KOH, Na2SiO3, Н2О2, NaOH, NaAlO2, Na5P3O10, NaF) and electrolysis conditions, multifunctional ceramic coatings on a magnesium alloy were obtained. The phase composition of the coating includes magnesium oxide (MgO), spinel MgAl2O4, Mg2SiO4 and Мg3(РО4)2 compounds. The phase composition of the coatings is determined by the composition of the electrolyte. The obtained MAO coatings provide high hardness, which is 1500 to 7300 MPa, as well as high corrosion resistance. The results obtained make it possible to recommend MAO coatings on magnesium alloys both as an external (functional) layer and for the formation of an underlayer for the subsequent application of protective coatings (varnishes, polymers, polytetrafluoroethylene, in particular).

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