Experimental Investigation of the Isothermal Section in the Al–Si–Y System at 773 K

Abstract

The phase equilibrium and phase transformation of the Al–Si–Y ternary system were investigated in 80 annealed alloys using an electron probe microanalysis (EPMA), X-ray diffractometry (XRD) and differential scanning calorimetry (DSC). The phase equilibrium at 773 K was determined, and the phase distribution and solid solubility of the Al–Si–Y isothermal section at 773 K were obtained. A total of 23 three-phase zones and 4 two-phase zones were obtained, and 2 new ternary compounds, AlSi4Y5 and Al2Si3Y5, were identified from the non-aluminum-rich corner. Additionally, the phase transition temperatures of representative alloys were determined by the DSC method, and then the phase transition temperatures were processed to obtain the experimental points of vertical sections. In the Al–Si–Y alloy system, the phase diagrams of the vertical sections with X(Al) = 90 at.%, 80 at.%, 70 at.% and 60 at.% at the aluminum-rich corner were calculated, and then the experimental points were inserted into the vertical section phase diagrams. The results of the vertical sectional experiments obtained from the validation experiments are in good agreement with the vertical sectional data obtained from the calculations, indicating that the validated thermodynamic description is useful for the microstructure design of the aluminum-rich corner of the Al–Si–Y ternary alloy.

Role of SIRT3 in bone homeostasis and its application in preventing and treating bone diseases

“…As such, dihydromyricetin is a potential agonist of SIRT3 (Zhou et al, 2014b;Liu et al, 2016). Moreover, although SIRT3 abundance decreases with cartilage degeneration, dihydromyricetin can activate SIRT3-mediated mitochondrial homeostasis and reverse chondrocyte degeneration (Wang et al, 2018). This provides an emerging target for SIRT3 in OA treatment and further enriches the upstream and downstream factors of SIRT3 to inform the design of novel OA therapeutics.…”

The role of pyroptosis in heart failure and related traditional chinese medicine treatments

“…var. vestita Rehd] (She Pu Tao) and has anti-inflammatory, antithrombotic, antioxidant, and antitumor effects (Wang et al, 2018). Activation of the inflammatory response by the NLRP3 inflammasome may be one of the mechanisms by which adriamycin induces myocardial injury and HFpEF, and this finding may lead to new treatment ideas and methods.…”

Plasmodesmata‐associated Flotillin positively regulates broad‐spectrum virus cell‐to‐cell trafficking

“…We explored whether RSV MP (NSvc4) and NP affected PD pore sizes by regulating flotillin1 expression. In transgenic rice with NP overexpression (Yang et al, 2020), the transcript level of flotillin1 was increased significantly (Figure 5d), and the PD pore sizes at the neck and middle of the aperture were enlarged by 8.9% and 6.6%, respectively, compared to WT (Figure 5e). On the other hand, in transgenic rice with MP overexpression (Zheng et al, 2017), the transcript level of flotillin1 and the PD pore sizes did not change (Figure 5f,g).…”