Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Rashid Asfandiyarov"'
Publikováno v:
Materials, Vol 16, Iss 1, p 162 (2022)
The effect of slippage during High Pressure Torsion (HPT) of technically pure Ti and pure Cu samples was investigated. The “joint torsion of the disk halves” method was used to evaluate the effect of slippage. It was shown that slippage starts al
Externí odkaz:
https://doaj.org/article/e122b1fd81774c8b99bde8cd56bfdb2c
Publikováno v:
Metals, Vol 12, Iss 8, p 1278 (2022)
The research on structural features, microhardness distribution, and deformation features of Vit105 bulk metallic glass (BMG) before and after high-pressure torsion (HPT), as well as after relaxing annealing, has been carried out. HPT n = 1 leads to
Externí odkaz:
https://doaj.org/article/d9c7c9c4b9a841a2a32fbfc91eb7242d
Autor:
Tomáš Krajňák, Miloš Janeček, Peter Minárik, Jenő Gubicza, Pham Tran Hung, František Nový, Arseniy Raab, Georgy Raab, Rashid Asfandiyarov
Publikováno v:
Metals, Vol 11, Iss 1, p 63 (2020)
In the present study, a coarse-grained Cu–0.5 wt% Zr alloy was repeatedly processed by a novel technique of rotational constrained bending (RCB). In this technique, the workpiece was deformed by bending in a channel with an angle of 90°, using a r
Externí odkaz:
https://doaj.org/article/bea40a5d309c4c1dbd597c8efb2bf086
Autor:
Georgy Raab, Farid Utyashev, Rashid Asfandiyarov, Arseniy Raab, Denis Aksenov, Ilyas Kodirov, Miloš Janeček, Tomáš Krajňák
Publikováno v:
Metals, Vol 10, Iss 7, p 879 (2020)
In this work, we give a theoretical justification of the non-monotonic character of strain in the process of refinement and formation of a grain-type structure during the deformation processing of low-alloyed copper heat-hardenable alloys. A regulari
Externí odkaz:
https://doaj.org/article/f5f5ee7779f746ae96157707e1aae876
Publikováno v:
Key Engineering Materials. 910:344-350
The paper presents the results of a study of changes in the structure during equal-channel angular pressing (1 and 4 cycles) with a deformation rate of 320 mm/s. It was found that a significant structure refinement of copper M1 and Cu-1.1Cr alloy to
Publikováno v:
Frontier materials & technologies. :68-78
Recently, innovative medical techniques for restoring lost functions of patients have been actively developed, in which the use of bio-soluble (bioresorbable) materials is of particular importance. Such materials include alloys based on Mg, Fe, and Z
Autor:
Rashid Asfandiyarov, Denis Aksenov
Publikováno v:
Frontier materials & technologies. :41-49
Increasing the fatigue resistance of implants is an important scientific and technical problem. One of the solutions to this problem is the high-strength state formation due to the ultrafine-grained (UFG) structure. However, high-strength alloys are
Publikováno v:
Letters on Materials. 11:416-421
Autor:
Miloš Janeček, Jozef Veselý, Georgy I. Raab, Jenő Gubicza, Peter Minárik, P. Cejpek, Pham Tran Hung, A. G. Raab, Tomáš Krajňák, Rashid Asfandiyarov, Dalibor Preisler, František Nový
Publikováno v:
Metallurgical and Materials Transactions A. 52:1665-1678
In this study, a novel severe plastic deformation technique referred to as rotational constrained bending (RCB) is introduced. A special constrained bending die, which imposes bending deformation to the billet during the first pass, was developed for
Publikováno v:
Letters on Materials. 11:95-99