Zobrazeno 1 - 10
of 370
pro vyhledávání: '"Ω phase"'
Publikováno v:
Materials Research Letters, Vol 12, Iss 10, Pp 727-736 (2024)
In most Ni-free Ti-Nb- and Ti-Zr-based superelastic alloys, large amounts of high-cost and rare elements such as Nb, Ta, Hf and/or Zr are contained, increasing the cost and fabrication difficulty of the alloy. Here, new low-alloy content Ti-Mo-Zr-Sn-
Externí odkaz:
https://doaj.org/article/b66127ce193844e590fe5e55b16b73df
Publikováno v:
Cailiao gongcheng, Vol 52, Iss 4, Pp 102-109 (2024)
Metastable β type Ti-34Nb-4Zr-0.3O(mass fraction/%)alloy (TNZO) was prepared by vacuum arc melting, single-phase hot forging and cold rolling. The cold-rolled TNZO alloys were aged at low-temperature of 250 ℃ and 300 ℃ in order to reveal the eff
Externí odkaz:
https://doaj.org/article/f4577b5dacf14ab1ae1a7e39a052cd11
Publikováno v:
Journal of Materials Research and Technology, Vol 26, Iss , Pp 1214-1237 (2023)
Pre-stretching prior to aging is known to degrade the performance of Al–Cu–Mg–Ag alloys at elevated temperatures. In this work, small pre-stretching by 0.5% and 1.8% is selected to explore its potential influences on the microstructure and stre
Externí odkaz:
https://doaj.org/article/617374f75821473f8d861a4eb8b96812
Autor:
Jian Wang, Jingpei Xie, Douqin Ma, Zhiping Mao, Tingting Liang, Puyou Ying, Aiqin Wang, Wenyan Wang
Publikováno v:
Journal of Materials Research and Technology, Vol 25, Iss , Pp 6880-6885 (2023)
Effect of deep cryogenic treatment (DCT) on the aging behavior and tensile properties of Al–Cu–Mg–Ag alloy was investigated. Results show that DCT of Al–Cu–Mg–Ag alloy produces plastic deformation of about 0.2% and high-density dislocatio
Externí odkaz:
https://doaj.org/article/4eb2be48962b42ce818a554ffdf55779
Publikováno v:
Journal of Materials Research and Technology, Vol 24, Iss , Pp 9111-9123 (2023)
This study investigates the effect of the ω phase on the microstructure evolution and mechanical properties of the Ti–3Al–5Mo–4Cr–2Zr–1Fe (Ti-35421) near β titanium alloy. The study employed a solution treatment at 850 °C followed by two
Externí odkaz:
https://doaj.org/article/c8a12765207e45b38ee8defed8c398e1
Autor:
Fucheng Qiu, Tuo Cheng, Orest M. Ivasishin, Dmytro G. Savvakin, Guangyu Ma, Yuchao Song, Huiyan Xu
Publikováno v:
Journal of Materials Research and Technology, Vol 24, Iss , Pp 4203-4217 (2023)
Starting microstructure with nonuniform micro-scale grains is designed for the study of microstructure and mechanical properties after rapid heat treatment (RHT) and subsequent aging. RHT was used to retard β grain growth in single-phase β region,
Externí odkaz:
https://doaj.org/article/5b0cae4a02d846cb853bae897fd4688f
Publikováno v:
Journal of Materials Research and Technology, Vol 23, Iss , Pp 5644-5652 (2023)
The potential of the Bismuth (Bi) addition was evaluated for the development of biocompatible metastable β (bcc) Ti alloys from the viewpoints of mechanical properties and phase stability. The basic alloy was Ti–5 mol% Cr, and 0–9 mol% Bi was ad
Externí odkaz:
https://doaj.org/article/fdd3ce7fbd7e42738f5f31c9b18acc02
Publikováno v:
Materials Research Letters, Vol 9, Iss 12, Pp 523-530 (2021)
Phase transformation is rare in pure body-centered cubic (BCC) metals due to the associated high energy barrier. Here, omega (ω) phase transformation in single-crystal niobium (Nb) under compression at 77 K was studied by atomistic characterization
Externí odkaz:
https://doaj.org/article/0888df5347ad435290a741dc4c669f1e
Akademický článek
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Publikováno v:
Journal of Materials Research and Technology, Vol 18, Iss , Pp 3347-3357 (2022)
For Al–Cu–Mg–Ag alloys, Ω phases play a crucial role in determining the mechanical property at room and elevated temperatures. In this work, an Al–5.5 wt.% Cu alloy with various Mg and Ag contents was prepared by casting and rolling. Combine
Externí odkaz:
https://doaj.org/article/67251a46e87a4dc383cea02397ec64fb