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Article
Influence of Extrusion Ratio on Microstructure and Tensile Properties of Mg–Gd–Y–Zn–Zr Alloy
In the present work, an Mg–5Gd–4Y–0.5Zn–0.5Zr alloy was extruded at 450 °C with three extrusion ratios of 25, 79 and 178. The microstructure of the as-cast and as-extruded specimens were analyzed by using Opti...
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Article
Study on the microstructure and properties of AZ31 alloy by hot die forging extrusion
Mg−3.18Al−1.00Zn−0.06Mn(wt.%) (AZ31) alloy was fabricated through a combination of hot die forging at 300℃ and extrusion processes (HFE). Results demonstrate that the HFE process can accelerate dynamic recryst...
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Article
An insight into plastic deformation behavior of bimodal-grained Mg–1Mn–0.5Al–0.5Ca alloy
Mg–Mn–Al–Ca alloys with bimodal grain structures present excellent mechanical properties. In this work, a deeper understanding of the non-uniform deformation behavior of Mg–1Mn–0.5Al–0.5Ca alloys between bimod...
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Article
Grain Refinement and Mechanical Properties of AZ31 Alloy Processed by Pre-die Forging Extrusion at Different Temperatures
A Mg-3Al-1Zn (AZ31) alloy with highly homogeneous fine grains was fabricated using a simple extrusion method named pre-die forging extrusion (PFE). The strain induced by the pre-forging process resulted in cry...
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Article
Microstructure, texture, and mechanical properties of Mg–4Zn–1Mn–xCa alloys and the fabrication of biomedical Mg thin-walled micro-tubes
In this study, the microstructure, texture, and mechanical properties of Mg–4Zn–1Mn–xCa (x = 0, 0.2, 0.5, wt%) alloys are studied. The thin-walled micro-tubes of Mg–4Zn–1Mn–xCa (x = 0, 0.2, wt%) alloy are fabrica...
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Article
Twinning Deformation and Yield Asymmetry Improvement of Magnesium Alloys by Free-End Torsion
In this investigation, extruded Mg-Ag alloy rods were subjected to free-end torsion at room temperature. The results reveal that the activation of extension twinning in the central area on the transverse surfa...
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Article
The Effect of Multiple Shot Peening on the Corrosion Behavior of Duplex Stainless Steel
Various types of shot peening treatments were applied to duplex stainless steel. The effects of shot peening intensity and working procedures on the microstructure were investigated. The domain size and micros...
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Article
Spatial distribution and temporal trends of mercury and arsenic in remote timberline coniferous forests, eastern of the Tibet Plateau, China
An intensive investigation was conducted to study the spatial distribution and temporal variety trend of mercury and arsenic in plant tissue and soil profile in the eastern of the Tibet Plateau and to explore ...
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Article
The cadmium and lead of soil in timberline coniferous forests, Eastern Tibetan Plateau
The health of coniferous forests has been attended due to the heavy metal pollution. The accumulation of heavy metals can increase the risk of harmful effects in the future. The monitoring of soil in timberlin...
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Article
Heavy metal concentrations in timberline trees of eastern Tibetan Plateau
Concentrations of 14 heavy metals (Ag, As, Cd, Co, Cr, Cu, Hg, Mo, Ni, Pb, Sb, Tl, V, and Zn) in needles, twigs, bark and xylem of spruce and fir collected at the timberline of eight sites along the Hengduan M...
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Article
Thermal and electrical conductivity of binary magnesium alloys
Thermal conductivity is a key parameter for thermal design and management of the electronic components in their passive cooling processes. In this work, thermal and electrical conductivities of six groups of b...
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Article
Correlation on the Electrical and Thermal Conductivity for Binary Mg–Al and Mg–Zn Alloys
In this work, the electrical resistivity and thermal conductivity of both as-solution binary Mg–Al and Mg–Zn alloys were investigated from 298 K to 448 K, and the correlation between the corresponding electric...
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Article
Phase Equilibria of the Cu-Ti-Er System at 773 K (500 °C) and Stability of the CuTi3 Phase
The phase relationships of the Cu-Ti-Er ternary phase diagram at 773 K (500 °C) were investigated mainly by means of X-ray powder diffraction (XRD), scanning electron microscopy (SEM) with energy dispersive sp...
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Article
Phase Diagrams of the Zr–Si–RE (RE=La and Er) Ternary Systems at 773 K (500 °C)
The isothermal sections of the phase diagram of the Zr–Si–RE (RE=La and Er) systems at 773 K (500 °C) have been investigated using X-ray power diffraction (XRD), scanning electron microscopy (SEM), and optical...
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Article
Phase Equilibria in the Al-Zr-Nd System at 773 K
The isothermal section of the phase diagram of the Al-Zr-Nd ternary system at 773 K has been investigated by means of x-ray powder diffraction (XRD), scanning electron microscopy (SEM) and optical microscopy (...
