Results 71 to 80 of about 2,384 (206)

THE INFLUENCE OF THE INGOT MOLD COOLING ON THE STRUCTURE OF SILUMINA CASTINGS AK15M3 AT VERTICAL CENTRIFUGAL CASTING

open access: yesЛитьë и металлургия, 2013
Influence of ways of the mold cooling on structure of castings with diameter of 135 mm from AK15M3 silumin at vertical centrifugal casting is investigated.
V. Yu. Stecenko   +2 more
doaj  

Stucture and properties of hypereutectic silumin (AL-(20-22)% SI) after high-intensity electron beam [PDF]

open access: yes, 2016
This work reflects the study of the composition, the structure and phase composition of thehypereutectic silumin Al-(20-22) wt.% Si, before and after treatment with high-intensity pulsed electron beamsubmillisecond exposure duration (set SOLO, Institute ...
Петрикова, Е. А.   +2 more
core  

Double Modification Of AlSi9Mg Alloy With Boron, Titanium And Strontium

open access: yesArchives of Metallurgy and Materials, 2015
The microstructure of an unmodified AlSi9Mg alloy comprises large primary α phase dendrites, eutectic β phase crystals and eutectic α phase. This composition is responsible for the alloy’s low strength parameters, and it limits the extent of practical ...
Lipiński T.
doaj   +1 more source

Probability-Statistical Estimation Method of Feed Influence on As-Turned Finish of Steels and Non-Ferrous Metals

open access: yesMetals, 2018
Based on the experimental data on the roughness parameter Ra, which stands for the mean arithmetic deviation of the profile, as obtained in the process of turning test specimens from different materials with constant elements of the cutting mode (depth a
Petro Kryvyi   +5 more
doaj   +1 more source

Influence of modifcation on the refinement of primary silicon crystals in hypereutectic silumin AlSi21CuNi

open access: yesProduction Engineering Archives, 2018
On the paper the influence of modifying micro additives on the refinement of primary silicon crystals in the hypereutectic AlSi21CuNi piston silumin have been examined.
Romankiewicz Remigiusz   +1 more
doaj   +1 more source

Scientific problem of modifying of primary crystals a -phase of silumin castings. Solutions

open access: yesЛитьë и металлургия, 2019
It is shown that intermetallic metals of the modifying ligatures are not the crystallization centers of primary crystals of a a-phase. As the main demodifier serves hydrogen dissolved in liquid silumin.
E. I. Marukovich, V. Yu. Stetsenko
doaj   +1 more source

High temperature alloying of high power semiconductor devices [PDF]

open access: yes, 2014
Diplomová práce se zabývá studiem procesu vysokoteplotního pájení výkonových polovodičových součástek. Křemíkové destičky jsou ve vakuové peci kontaktovány na molybdenovou elektrodu pro zajištění mechanické odolnosti a odvodu ztrátového tepla. Vlastnosti
Straškraba, Vojtěch
core  

Refinement of the secondary silumins

open access: yesЛитьë и металлургия, 2003
There are examined the problems of the secondary aluminium alloys refinement.
S. G. Rjazanov   +2 more
openaire   +1 more source

NANOSTRUCTURIZATION IN FOUNDRY PROCESSES

open access: yesЛитьë и металлургия, 2018
It is shown that at crystallization of alloys the sophisticated nanostructural processes have place. The nanocrystals of phases, their atoms, the centers of crystallization of dendrites, surface-active elements, gases, modifying elements, poorly soluble ...
E. I. Marukovich, V. Yu. Stetsenko
doaj   +1 more source

Low-toxic flux for treatment of Al-Si alloys made by recycling of scrape and waste [PDF]

open access: yes, 2015
Розглянуті еколого-економічні аспекти використання вторинної сировини для виробництва алюмінієвих сплавів. Розроблено флюс для рафінування та часткового модифікування Al-Si сплавів, отриманих шляхом рециклінгу.
Скуйбіда, О. Л.
core  

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