Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Sergey Vorozhtsov"'
Publikováno v:
Metals, Vol 7, Iss 12, p 544 (2017)
The influence of combined (helical and pass) rolling on the structure, residual porosity, and microhardness of an AA6082-0.2 wt % Al2O3 composite produced by casting with ultrasonic processing was evaluated in comparison with the matrix alloy. The na
Externí odkaz:
https://doaj.org/article/ff49eb103f9c4538ac2f98f5cfcf8daf
Autor:
Hajo Dieringa, Lydia Katsarou, Ricardo Buzolin, Gábor Szakács, Manfred Horstmann, Martin Wolff, Chamini Mendis, Sergey Vorozhtsov, David StJohn
Publikováno v:
Metals, Vol 7, Iss 10, p 388 (2017)
An AM60 magnesium alloy nanocomposite reinforced with 1 wt % of AlN nanoparticles was prepared using an ultrasound (US) assisted permanent-mould indirect-chill casting process. Ultrasonically generated cavitation and acoustic streaming promoted de-ag
Externí odkaz:
https://doaj.org/article/67357a52d8d245c0adfc2a2d9f636e66
Autor:
Anton P. Khrustalyov, Sergey Vorozhtsov, A. B. Vorozhtsov, Vladimir Promakhov, Ilya Zhukov, A. A. Kozulin
Publikováno v:
JOM. 70:2731-2738
An AA6082 aluminum alloy reinforced with small additions of Al2O3 (0.2 wt.%) nanoparticles has been. The introduction of a powder master alloy in a metallic melt was carried out by simultaneous ultrasonic exposure and mechanical mixing. Furthermore,
Autor:
Ilya Zhukov, A. B. Vorozhtsov, L. L. Min’kov, Vladimir Promakhov, Anton P. Khrustalyov, Sergey Vorozhtsov, V. Dammer, Marina Khmeleva
Publikováno v:
JOM. 69:2653-2657
Simulation results for mechanical mixing of aluminum melt using a mixing device are presented. It is found that an increase in the rotational velocity of the vortex device leads to intensive growth of turbulent diffusion in the liquid metal. Small vo
Publikováno v:
JOM. 69:2524-2528
One of the possible methods to produce composite alloys with improved mechanical characteristics is the modification of metal melts using submicron- or nanosized particles. Different methods, like ultrasonic or vibration processing, have been used to
Publikováno v:
Russian Journal of Non-Ferrous Metals. 58:427-433
This study was supported by the Ministry of Education and Science of the Russian Federation in the scope of the Federal Target Program “Research and Developments on Priority Developmental Directions of the Scientific-and-Production Complex of Russi
Structural and mechanical properties of aluminium-based composites processed by explosive compaction
Publikováno v:
Powder Technology. 313:251-259
Al based materials including Al-nanodiamonds and Al-Al2O3 processed by explosive compaction are considered in this paper. Improvements of composite properties were obtained by the introduction of diamond and ceramic nanoparticles (10 wt% of each) int
Publikováno v:
JOM. 2016. Vol. 68, № 12. P. 3094-3100
It is known that the use of external effects, such as acoustic fields (from ultrasonic to low-frequency range), help in breaking down agglomerates, improving particle wettability, providing uniform particle distribution in the melt volume, and reduci
Publikováno v:
Refractories and Industrial Ceramics. 56:610-614
Changes in structure, phase composition and crystal structure parameters are studied for materials of the ZrO2–MgO system after cyclic thermal shock effects. Features are revealed for formation of ceramic structure and phase condition with implemen
Autor:
Sergey Vorozhtsov, O. B. Kudryashova
Publikováno v:
JOM. 68:1307-1311
One of the promising directions in the technology of composite alloys with improved mechanical properties is reinforcement of the metallic matrix with nanopowders introduced in the liquid metal. Ultrasonic processing is known to significantly improve