Zobrazeno 1 - 10
of 958
pro vyhledávání: '"A Z, Valiev"'
Autor:
Guoliang Shuai, Meng Zhang, Zhen Li, Ruslan Z. Valiev, Andrey E. Medvedev, Diantao Zhang, Maged Elhefnawey, Feng Chen, Li Li
Publikováno v:
International Journal of Lightweight Materials and Manufacture, Vol 6, Iss 4, Pp 552-562 (2023)
The new conductive Al–Fe alloy (AA8176) is used in power transmission due to its high electrical conductivity. As a non-agе-hardenable alloy, Al–Fe alloy is not a subject for the strength improvement. So, Equal-channel Angular Pressing (ECAP) is
Externí odkaz:
https://doaj.org/article/dccb31f326c54c07a7f6a1ad1c4be370
Publikováno v:
Materials, Vol 17, Iss 13, p 3311 (2024)
The last two decades have witnessed significant progress in the development of severe plastic deformation techniques to produce ultrafine-grained materials with new and superior properties. This review examines works and achievements related to the l
Externí odkaz:
https://doaj.org/article/65edd3c735ec4cd6b55f7a1e1fdd194a
Publikováno v:
Materials, Vol 17, Iss 3, p 585 (2024)
A homogenized, supersaturated AlZnMgZr alloy was processed via severe plastic deformation (SPD) using a high-pressure torsion (HPT) technique for different revolutions at room temperature to obtain an ultrafine-grained (UFG) microstructure. The micro
Externí odkaz:
https://doaj.org/article/c56fad90c81c4257ba265394cd3499bb
Autor:
Sadjad Baradari, Natalia Resnina, Sergey Belyaev, Egor Prokofiev, Ruslan Z. Valiev, Mahmoud Nili-Ahmadabadi
Publikováno v:
Journal of Materials Research and Technology, Vol 19, Iss , Pp 2215-2224 (2022)
A newly developed quaternary Ni44.8Cu5Ti45.2Hf5 shape memory alloy (SMA) was processed by high-pressure torsion (HPT) for five turns under a pressure of 6 GPa at room temperature and then subjected to post deformation annealing (PDA) at 450 °C for 1
Externí odkaz:
https://doaj.org/article/52adf4ba4b7a460c82f161982078e504
Autor:
Zuzanka Trojanová, Kristýna Halmešová, Zdeněk Drozd, Ján Džugan, Ruslan Z. Valiev, Pavel Podaný
Publikováno v:
Journal of Materials Research and Technology, Vol 19, Iss , Pp 3498-3506 (2022)
The thermal expansion properties of the Ti6Al4V alloy deposited with direct energy subjected to severe plastic deformation through ECAP were studied in the temperature region 23–700 °C. The deposit samples exhibited two orientations: with the long
Externí odkaz:
https://doaj.org/article/c517044ef6754b8e8d375e39fea76960
Autor:
Kaveh Edalati, Andrea Bachmaier, Victor A. Beloshenko, Yan Beygelzimer, Vladimir D. Blank, Walter J. Botta, Krzysztof Bryła, Jakub Čížek, Sergiy Divinski, Nariman A. Enikeev, Yuri Estrin, Ghader Faraji, Roberto B. Figueiredo, Masayoshi Fuji, Tadahiko Furuta, Thierry Grosdidier, Jenő Gubicza, Anton Hohenwarter, Zenji Horita, Jacques Huot, Yoshifumi Ikoma, Miloš Janeček, Megumi Kawasaki, Petr Král, Shigeru Kuramoto, Terence G. Langdon, Daniel R. Leiva, Valery I. Levitas, Andrey Mazilkin, Masaki Mito, Hiroyuki Miyamoto, Terukazu Nishizaki, Reinhard Pippan, Vladimir V. Popov, Elena N. Popova, Gencaga Purcek, Oliver Renk, Ádám Révész, Xavier Sauvage, Vaclav Sklenicka, Werner Skrotzki, Boris B. Straumal, Satyam Suwas, Laszlo S. Toth, Nobuhiro Tsuji, Ruslan Z. Valiev, Gerhard Wilde, Michael J. Zehetbauer, Xinkun Zhu
Publikováno v:
Materials Research Letters, Vol 10, Iss 4, Pp 163-256 (2022)
Severe plastic deformation (SPD) is effective in producing bulk ultrafine-grained and nanostructured materials with large densities of lattice defects. This field, also known as NanoSPD, experienced a significant progress within the past two decades.
Externí odkaz:
https://doaj.org/article/82ba15537871424c844254efc42536dc
Publikováno v:
Materials, Vol 16, Iss 19, p 6593 (2023)
A supersaturated Al-4.8%Zn-1.2%Mg-0.14%Zr (wt%) alloy was processed by the equal-channel angular pressing (ECAP) technique at room temperature in order to obtain an ultrafine-grained (UFG) microstructure having an average grain size of about 260 nm.
Externí odkaz:
https://doaj.org/article/d0506d3656cf4f079d36ae3607343b23
Autor:
Nguyen Q. Chinh, Maxim Yu Murashkin, Elena V. Bobruk, János L. Lábár, Jenő Gubicza, Zsolt Kovács, Anwar Q. Ahmed, Verena Maier-Kiener, Ruslan Z. Valiev
Publikováno v:
Materials Research Letters, Vol 9, Iss 11, Pp 475-482 (2021)
The important benefits of ultrafine-grained (UFG) alloys for various applications stem from their enhanced superplastic properties. However, decreasing the temperature of superplasticity and providing superplastic forming at lower temperatures and hi
Externí odkaz:
https://doaj.org/article/ed313bc533c94965a19846759eab24cb
Autor:
Gennadiy V. Klevtsov, Ruslan Z. Valiev, Natal’ya A. Klevtsova, Maksim N. Tyurkov, Irina N. Pigaleva, Denis A. Aksenov
Publikováno v:
Metals, Vol 13, Iss 4, p 709 (2023)
In this paper, the fracture kinetics and mechanisms in the low-cycle fatigue region were analyzed for different ultrafine-grained (UFG) materials with body-centered cubic (bcc), hexagonal close-packed (hcp) and face-centered cubic (fcc) lattices. Thr
Externí odkaz:
https://doaj.org/article/c96ddefb1c034ec6926e280274ad6318
Publikováno v:
Crystals, Vol 13, Iss 3, p 413 (2023)
Strengthening by grain refinement via the Hall–Petch mechanism and softening by nanograin formation via the inverse Hall–Petch mechanism have been the subject of argument for decades, particularly for ultrafine-grained materials. In this study, t
Externí odkaz:
https://doaj.org/article/13281791e54748659812504d57b7498c