Zobrazeno 1 - 10
of 28 235
pro vyhledávání: '"long-period"'
Autor:
А.А. Shakirova, А.S. Chemaryov
Publikováno v:
Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, Vol 63, Iss 3, Pp 62-73 (2024)
On April 10, 2023, the strongest eruption of the Young Shiveluch volcano ( Russia, Kamchatka Peninsula) in the last 60 years occurred. The eruption was preceded by a long seismic activity since the end of July 2022. Earthquakes during this period wer
Externí odkaz:
https://doaj.org/article/12af3dcd9a8f4fff994cea47a2cd43b2
Publikováno v:
Journal of Magnesium and Alloys, Vol 12, Iss 8, Pp 3370-3393 (2024)
The mechanical properties of two main precipitating phases (LPSO and MgRE) and matrix in Mg-Gd-Y-Nd-Zn bioalloy were examined using nanoindentation method. A new is suggested for characterizing the elastic–plastic behavior, fracture toughness and s
Externí odkaz:
https://doaj.org/article/5d875a4d15d849dc9731aa5131721feb
Publikováno v:
CivilEng, Vol 5, Iss 3, Pp 559-575 (2024)
Structural health monitoring (SHM) is crucial for preventing and detecting corrosion, leaks, and other risks in reinforced concrete (RC) structures, ensuring environmental safety and structural integrity. Optical fiber sensors (OFS), particularly lon
Externí odkaz:
https://doaj.org/article/d16edb81ef5f4e27b33c8d4f1a39b240
Publikováno v:
Journal of Magnesium and Alloys, Vol 12, Iss 7, Pp 2952-2966 (2024)
The fracture toughness of extruded Mg-1Zn-2Y (at. %) alloys, featuring a multimodal microstructure containing fine dynamically recrystallized (DRXed) grains with random crystallographic orientation and coarse-worked grains with a strong fiber texture
Externí odkaz:
https://doaj.org/article/86e43b06b35e41f4a8506cfe20790aae
Publikováno v:
Journal of Magnesium and Alloys, Vol 12, Iss 5, Pp 1867-1879 (2024)
Based on experiments and first-principles calculations, the microstructures and mechanical properties of as-cast and solution treated Mg-10Gd-4Y-xZn-0.6Zr (x = 0, 1, 2, wt.%) alloys are investigated. The transformation process of long-period stacking
Externí odkaz:
https://doaj.org/article/b383e5d599ee46cf8af43dccaf037409
Autor:
Jenő Gubicza, Kristián Máthis, Péter Nagy, Péter Jenei, Zoltán Hegedűs, Andrea Farkas, Jozef Veselý, Shin-ichi Inoue, Daria Drozdenko, Yoshihito Kawamura
Publikováno v:
Journal of Magnesium and Alloys, Vol 12, Iss 5, Pp 2024-2040 (2024)
Mg-Y-Zn-Al alloys processed by rapidly solidified ribbon consolidation (RSRC) technique exhibit an exceptional mechanical performance indicating promising application potential. This material has a bimodal microstructure consisting of fine recrystall
Externí odkaz:
https://doaj.org/article/84188331d2ac4ba893991a312e42c1e6
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 2458-2466 (2024)
The multidirectional forging (MDF) experiments of Mg-Gd-Y-Zn-Zr alloy were performed. The effects of temperature and cumulative strain on microstructure and mechanical properties of multi-directional forged Mg-Gd-Y-Zn-Zr alloy were studied. The resul
Externí odkaz:
https://doaj.org/article/6e0bf4e8ad774011b284aaa4abd130e3
Publikováno v:
Nanophotonics, Vol 13, Iss 16, Pp 2925-2936 (2024)
We propose and demonstrate the simulation and fabrication of an all-fiber orbital angular momentum (OAM) mode converter capable of generating first- to fourth-order modes simultaneously, which is realized by inscribing a cascaded preset-twist long-pe
Externí odkaz:
https://doaj.org/article/86ed92bf2c8a4a3ab7cab6f1e164e0f2
Autor:
Xiaojie Zhou, Songke Xiao, Miao Li, Yanan Wang, Xianzheng Lu, Zijian Chen, Zihang Guo, Hongchao Xiao, Jing Guo
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 3832-3841 (2024)
In this work, the Mg97Y2Zn (at%) alloys have been processed by the rotary-die (RD) ECAP technique under different temperature or pass conditions to tailor the microstructure and mechanical properties. The results reveal that the DRX ratio (VDRX) incr
Externí odkaz:
https://doaj.org/article/bde1e8d4f8544185bab387aa8264c816
Autor:
Xiaohua Zhang, Yuan Shi, Jiaqi Li, Hongyan Yue, Chao Li, Ji Ma, Jin Qin, Siming Guo, Caixia Li, Qiang Chen
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 1601-1615 (2024)
In this paper, the microstructure and tensile mechanical properties of Mg-8.5Gd-4.5Y-0.8Zn-0.4Zr rare-earth (RE) magnesium alloy in the as-cast state and its solid solution state were investigated by means of optical microscopy (OM), scanning electro
Externí odkaz:
https://doaj.org/article/416c69a368604f84bfb7cfc43e45c70b