li ne used strengthening

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  Coarsening kinetics and strengthening mechanisms of core …

  2021120 · As shown in Fig. 4, Al 3 (Yb, Er, Sc, Zr, Li) particles aged at 150 °C for 144 h remain coherent with the matrix. Therefore, ambient-temperature strengthening mechanism of coherent precipitates is adopted. In precipitation strengthening, the mechanisms include shearing and bypass strengthening.

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  Experimental study on strengthening of Mg–Li alloy by …

  201351 · On the other hand, some attempts have been made to develop new Mg–Li alloy systems by introducing other strengthening methods into Mg–Li alloys. For example, Xu et al. [9] reported strengthening of Mg–8Li– (3–9)Zn– (0.6–1.8)Y (wt.%, Zn/Y ≈ 5.1) alloys by the formation of an icosahedral phase.

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  Revealing mechanical property–strengthening micro …

  2022111 · Abstract In this study, the Ni/Ni3Al-based alloys were proposed, and their microstructures were established. Uniaxial tension was performed based on the γ′ phase precipitates of alloys with different shape ratio by means of molecular dynamics (MD) simulations. We demonstrate that the crystal distortion induced by the transition from …

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  Room Temperature Strengthening and High-Temperature …

  2023315 · The α-Mg and β-Li phases achieve solid solution strengthening during processing. Al 2 Y and Al 4 Sr compounds possess high melting points and can realize the second phase strengthening during processing.

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  Microstructure and strengthening mechanism of hot-extruded …

  2022320 · The microstructure evolution of test alloys during hot extrusion was discussed and the strengthening mechanism of Mg-7Li-2Al-1.5Sn alloys was systematically investigated in this research to elucidate the underlying principle governing the …

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  The strengthening effect of icosahedral phase on as-extruded Mg–Li ...

  200781 · Through investigating the mechanical properties of three kinds of Mg–Li–Zn–Y alloys, a strengthening method, i.e. introducing I-phase (Mg 3 Zn 6 Y, icosahedral quasicrystal structure) in the matrix of Mg–Li alloys, for as-extruded Mg–Li alloys has been demonstrated. The tensile results indicate that I-phase can effectively …

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  Coherent interface strengthening of ultrahigh pressure heat …

  2020815 · Herein, an unexpected double-stage strengthening phenomenon was discovered in Mg-8Li-1Y (wt.%) alloys through high pressure (6 GPa) heat treatments over a range of 700-1300 °C. Attractively, the yield strength values are improved remarkably without losing their ductility. The low temperature strengthening mechanism is mainly driven by …

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  Interstitial strengthening of refractory ZrTiHfNb0.5Ta0.5Ox (x …

  2018101 · Abstract This paper investigates the microstructure and mechanical properties of ZrTiHfV 0.5 Nb 0.5 O x (x = 0.05, 0.1, 0.2) alloys. The ZrTiHfNb 0.5 Ta 0.5 alloy has single body-centered cubic (BCC) phase structure. No oxide phases are detected and the diffraction peak (1 1 0) shifts to the left apparently when oxygen is added. Only one …

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  Extra strengthening and work hardening in gradient

  The gradient nanotwinned strengthening concept proposed in this work provides insights into combining structural gradients at different length scales in order to push forward the strength limit of materials and may be essential to creating the next generation of metals with both high strength and high ductility.

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  Precipitates strengthening mechanism of a new squeeze-cast Al–Cu–Li…

  202371 · For the Al–Li alloys, heat treatment is one of the most common and effective strengthening methods, especially for its precipitation strengthening, which varies with the type, size, number density and distribution of aging precipitates.

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