Novel insights on the near atomic scale spatial distributions of substitutional alloying and interstitial impurity elements in Ti-6Al-4V alloy

Sahoo, Souvik; Licata, Olivia; Mazumder, Baishakhi; Roy, Shibayan

doi:10.1016/j.jallcom.2022.164511

Cited by 11 publications

(3 citation statements)

References 73 publications

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“…The theoretical density of the alloy can be obtained by weighing the density of each metal in the alloy [29], which is mainly affected by temperature. According to the literature, ρ mix can be calculated using Equation ( 12):…”

Section: Evaporation Kinetics Of Al In the Alloymentioning

confidence: 99%

Study on Al Evaporation during AlV55 Melting and Alloy Preparation

Sun,

Wan,

et al. 2024

Metals

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Vacuum induction melting is a commonly used method for preparing AlV55 alloys. However, this method results in high Al evaporation losses, leading to poor cost control. Moreover, the influence of the process parameters on the alloy composition remains unclear. In this study, the evaporation pattern of Al in the melting and preparation processes of AlV55 alloys is studied, and measures for controlling the system pressure are proposed to effectively reduce Al evaporation. The experimental results show that smelting under an Ar gas atmosphere of 2000 Pa can reduce the evaporation loss of Al from 11.48% under vacuum conditions (60 Pa) to 0.58% of the amount of raw material added, effectively improving the metal utilization rate and reducing production costs. The influence of various process parameters on the alloy composition and Al volatilization are investigated to enable the effective control of the compositional uniformity and impurity content of the resulting alloys. Under optimal conditions, the impurity contents of C, O, and N are 0.03%, 0.0073%, and 0.013%, respectively; this reduces the amount of Al lost by evaporation compared to conventional methods, and the alloy produced meets commercial standards.

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Section: Evaporation Kinetics Of Al In the Alloymentioning

confidence: 99%

Study on Al Evaporation during AlV55 Melting and Alloy Preparation

Sun,

Wan,

et al. 2024

Metals

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“…Titanium alloys have a high specific strength, low thermal conductivity, and excellent high and lowtemperature properties, and are widely [1][2][3] used in aerospace. At present, Ti6Al4V alloy with α+β biphase structure has been widely used in liquid hydrogen vessels, liquid hydrogen conduits, and other cryogenic environment components [4] .…”

Section: Introductionmentioning

confidence: 99%

Effects of Al and V on deformation behavior and microscopic mechanism of titanium alloy at ultra-low temperature using molecular dynamics

Zhang,

Liu,

et al. 2024

J. Phys.: Conf. Ser.

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A uniaxial tensile was executed with the molecular dynamics method, while the interaction between Ti, Al and V was described by hybrid potential. The influences of Al and V elements on the plastic deformation behavior and microscopic deformation mechanism of Ti-Al-V alloy were studied under ultra-low temperatures. The results show that the high content of Al and V elements leads to a sudden decrease of plasticity at 300 K. The plasticity is slightly reduced with increasing Al content when the content of V is 3.3~6.2 wt.% at 77 K. However, with the temperature reduced to 50 K, Al promotes the activation of dislocation when the content of V is high (6.2 wt.%) and hinders the activation of dislocation when V content is low (0.4 wt.%). At high V content (6.2 wt.%), the increase in plasticity with increasing Al content is more pronounced. Therefore, the strength and plasticity of Ti6.5Al6.2V increase with decreasing temperature.

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“…The primary strengthening of Al arises from the lattice distortion produced in the Ti lattice structure. V, having almost the same atomic size as Ti, produces minimal distortion and hence results in lower solid solution strengthening [29]. Additionally, Fig.…”

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confidence: 96%