Xiao-shu Zeng

Effects of Cooling Rate and Component on the Microstructure and Mechanical Properties of Mg–Zn–Y Alloys

The microstructure and mechanical properties of Mg–6Zn–1Y and Mg–6Zn–3Y (wt%) alloys under different cooling rates were investigated. The results show that the second dendrite arm spacing (SDAS) of Mg–6Zn–1Y and Mg–6Zn–3Y is reduced by 32 and 30% with increasing cooling rates (Rc) from 10.2 to 23xa0K/s, which can be predicted using a empirical model of

Morphological Evolution of Fe-Rich Phases in the AlSi9Cu3Mg0.19(Fe) Alloy with the Addition of Minor Mn and Cr

{text{SDAS}} = 68R_{text{c}}^{ - 0.45}

Microstructure and mechanical properties of AZ91 alloy reinforced by carbon nanotubes coated with MgO

SDAS=68Rc-0.45 and

Method for adding carbon nano tube into metal bath

{text{SDAS}} = 73R_{text{c}}^{ - 0.45}

Microstructure and mechanical properties of Mg-4.0Zn alloy reinforced by NiO-coated CNTs

SDAS=73Rc-0.45, respectively. The compressive strength of both alloys increases with increasing the cooling rate, which is attributed to the increase of volume fraction (Vf) of secondary phases under high cooling rate. The interaction of the cooling rate and component with SDAS has been theoretically analyzed using interdependence theory.

Atomic relaxation, stability and electronic properties of Mg2Sn (100) surfaces from ab-initio calculations

Abstract AZ91D alloy composites with 1.0% CNTs have been fabricated by a method combined ball milling with stirring casting. The composite was investigated using optical microscopy(OM), X-ray diffraction(XRD), Fourier transform infrared spectroscope (FT-IR), scanning electron microscope (SEM), transmission electron microscope (TEM) and room temperature (RT) tensile test. The results show that CNTs were homogeneously distributed in the matrix and maintained integrated structure. The yield strength and ductility of AZ91D/CNTs composite were improved by 47.2% and 112.2%, respectively, when compared with the AZ91 alloy. The uniform distribution of CNTs and the strong interfacial bonds between CNT and the matrix are dominated to the simultaneous improvement of yield strength and ductility of the composite. In addition, the grain refinement as well as the finer β phase (Mg 17 Al 12 ) with homogenous distribution in the matrix can also slightly assist to the enhancement of the mechanical properties of the composite.