【摘 要】
：
The influence of Al content on microstructure characterization and indentation hardness testing behavior of Mg-8Sn-xAl(x=1 wt%, 2 wt%, 3 wt%)-1Zn alloys was investigated by optical microscope, Pandat software, X-ray diffraction, scanning electron microsco
【机 构】
：
Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Ta
【出 处】
：
武汉理工大学学报（材料科学版）（英文版）
论文部分内容阅读
The influence of Al content on microstructure characterization and indentation hardness testing behavior of Mg-8Sn-xAl(x=1 wt%, 2 wt%, 3 wt%)-1Zn alloys was investigated by optical microscope, Pandat software, X-ray diffraction, scanning electron microscope, differential scanning calorimetry and a micro-hardness testing equipment. The results can be summarized as follows: when the Al content is 1 wt%, the alloy is composed ofα-Mg and Mg2Sn phases; while the new phase of Mgx(AlZn)1-xcan be observed and the morphology of Mg2Sn phase transfers from the semi-continuous network to the dispersed particles with further addition of Al content to 2 wt% and 3 wt%. The dendrite arm spacing (DAS) deceases ifrstly and then slightly increases with the increase of Al content. The micro-hardness of Mg-8Sn-xAl(x=1 wt%, 2 wt%, 3 wt%)-1Zn also increases with increasing of Al content. Moreover, the indentation size effect (ISE) in Vickers hardness for Mg-8Sn-1Al-1Zn alloy was observed with the applied test load ranging from 0.490 to 4.903 N.
其他文献
The thermo-dynamics of reactions between carbonatite and sodium silicate solution at ordinary temperature (25℃) were investigated. The calculated results indicate that at ordinary temperature, the reactions between dolomite, calcite, Ca2+ and Mg2+ in carb
Hardwood residue (HR), a byproduct of paper industry, was liqueifed by using polyethylene glycol 400 (PEG400) and ethylene carbonate (EC) as the liquefaction solvents, and concentrated sulfuric acid as the catalyst to produce bio-polyols (HRLP), which wer
In order to improve the wear resistance and restrain nickel release of TiNi alloys, the Mo modified layers on TiNi substrates were obtained using the double glow plasma surface alloying technique. Scanning electron microscopy (SEM), glow discharge optical
The Zn1-xCuxO polycrystalline materials were prepared by doping CuO into wurtzite ZnO through solid state reaction. The high concentration of copper doping in ZnO exhibited remarkable room temperature ferromagnetism. The Experiments showed that the magnet
The chloride ion transmission model considering diffusion and convection was established respectively for different zones in concrete by analyzing chloride ion transmission mechanism under the drying-wetting cycles. The finite difference method was adopte
We prepared graphene(GE) with a mean size of 3087 nm. The transition of graphene oxide (GO) to GE was conifrmed by UV-visible spectroscopy, Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The experimental results of optical mic
Our researches are based on the fact that the systems composed of polyacrylamide and montmorillonite under a kind of shear state often appear in some important practical processes like drilling welletc. The viscosity of polyacrylamide is usually the most