Showing papers in "Transactions of Nonferrous Metals Society of China in 2015"

TL;DR: In this article, the porosity increases with the increase of cycle number, the rate of porosity growth descends at the beginning of freeze-thaw, yet accelerates after a certain number of cycles.

TL;DR: In this article, the mechanical and tribological properties of hot-pressed copper-based composites containing different amounts of graphene nanosheets (GNSs) are compared with those of copper-graphite (Gr) composites fabricated by the same method.

TL;DR: In this article, the effects of increasing SiC content and number of layers of Al2024/SiC FGMs on the microstructure and mechanical properties of the composite were investigated.

TL;DR: In this article, the effect of iron addition on the microstructure, mechanical and magnetic properties of Al-matrix composite was studied, and the results showed that both densification and thermal conductivity of the composites decrease by increasing the iron content.

TL;DR: In this paper, the photocatalytic performance of the Cu-doped TiO 2 nanoparticles with different doping contents from 0 to 2.0% (mole fraction) were synthesized through sol-gel method.

TL;DR: In this paper, the oxidation properties of high-entropy alloys AlxCoCrFeNi (x=0.15, 0.4) in supercritical water at 550 and 600 °C were studied, and compared with HR3C steel.

TL;DR: In this article, the microstructural features and tensile properties of friction stir welded (FSW) similar and dissimilar joints made of AA6061 and AA5086 aluminium alloys were investigated.

TL;DR: In this paper, the microstructures and mechanical properties of homogenized-rolled AA5052 aluminum alloys with different rolling reductions and following annealing treatments were investigated by optical microscope, scanning electron microscope, X-ray diffractometer, micro-hardness and tensile tests.

TL;DR: In this paper, a compocasting method was applied to produce aluminum alloy AA6061 reinforced with various amounts (0, 2, 4, 6% and 8%, mass fraction) of RHA particles.

TL;DR: In this paper, the effects of molar ratio of C to Fe n(C)/n(Fe) and temperature on the behaviors of vanadium and chromium during direct reduction and magnetic separation were investigated.

TL;DR: In this paper, the structure, morphology, opto-magnetic and photocatalytic properties of the obtained powder were characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, high resolution scanning electron microscopy (HRSEM), energy dispersive x-ray (EDX), ultraviolet-visible diffuse reflectance spectra (DRS), photoluminescence (PL) and vibrating sample magnetometer (VSM) techniques.

TL;DR: Friction stir welding of AA7075-T651 plates with thicknesses of 10 and 16 mm was investigated in this paper, where defect-free, full-penetration welds were obtained after careful process parameter selection.

TL;DR: In this article, a tunable ionic liquid (IL), 1-butyl-3methylimidazolium chloride, was used as template for the synthesis of metal-organic frameworks (MOFs).

TL;DR: In this article, the residues of salt lake brine from which potassium had been removed were used to extract Rb + and Cs + together with a sulphonated kerosene (SK) solution of 1.0 mol/L 4-tert-butyl-2-(α -methylbenzyl) phenol (t-BAMBP).

TL;DR: In this article, a nano-sized layered double hydroxides (LDH) conversion film on AZ31 alloy was synthesized by a urea hydrolysis method, and the formation mechanism of the film was proposed.

TL;DR: In this paper, a similar friction stir welding between 1060 aluminum alloy and annealed pure copper sheet with a thickness of 3 mm was investigated, and sound weld was obtained at a rotational speed of 1050 r/min and a welding speed of 30 mm/min.

TL;DR: Magnesium sulfate was proposed to be leaching agent to deal with the ion-adsorption type rare earths ore to reduce or even eliminate ammonia-nitrogen emissions as discussed by the authors.

TL;DR: In this paper, the microstructure, thickness, phase analysis, element composition and hardness of ceramic coating incorporated with nano-SiC was respectively investigated by scanning electron microscopy(SEM), film thickness meter, X-ray diffraction (XRD), energy disperse spectroscopy(EDS) and Vickers hardness tester.

TL;DR: In this article, the material removal rate increases with the increase of pulse on time though the wire tension does not affect the material extraction rate, and the appearance of the machined surfaces is very similar under all the machining conditions.

TL;DR: In this article, the synthesis and catalytic properties of copper nanoparticles (Cunps) were reported using L-ascorbic acid as reducing and capping agent in aqueous medium.

TL;DR: In this article, the effect of small tool pin profiles on the microstructures and mechanical properties of 6061 aluminum alloy joints using friction stir welding (FSW) technique was investigated.

TL;DR: In this article, double hydroxides (LDH) coatings were fabricated by the in-situ hydrothermal treatment method on the AA5005 aluminum alloy and the corrosion resistance of the LDH coatings was studied using potentiodynamic polarization tests and electrochemical impedance spectrum (EIS).

TL;DR: In this article, the microstructural development and its effect on the mechanical properties of Al/Cu laminated composite produced by asymmetrical roll bonding and annealing were studied.

TL;DR: In this paper, a process for removing and stabilizing arsenic (As) from anode slime was proposed, in which the arsenic in the leaching solution can be further precipitated as a form of scorodite (FeAsO 4 ·2H 2 O).

TL;DR: In this paper, the microstructure and hardness of the stir zone (SZ) with different welding heat inputs were investigated for friction stir-welded 2024-T3 aluminum by transmission electron microscopy, differential scanning calorimeter and Vickers micro-hardness test.

TL;DR: In this article, an easy method for preparing CuO nanoparticles incorporated in a mesoporous structure was presented based on the thermal decomposition of a copper complex, which can be used as an efficient photocatalyst for water treatment.

TL;DR: In this paper, the influence of rock dust size and mass fraction on density, hardness and dry sliding wear behavior of Al 6061/rock dust composite processed through stir casting was investigated, where wear behavior was characterized at different loads, sliding velocities and distances using pin-on-disc setup.

TL;DR: In this article, the synergistic effect of corrosion and wear on the performance of various materials, including Fe-based alloys, ceramics, and corresponding high apparatus of corrosion-wear in molten aluminum and its alloys was discussed, and the effects of dynamic agitation due to rotating of friction pairs, physical property of liquid metal and size of grain etc.

TL;DR: In this paper, equal channel angular pressing (ECAP) up to 10 passes at room temperature was applied to pure aluminum samples to investigate the effects of the ECAP number of passes on the microstructure evolution, the mechanical properties, deformation homogeneity and corrosion behavior of the processed samples.

TL;DR: In this paper, two additives of ethylene diamine tetraacetic acid (EDTA) and ammonium chloride (NH4Cl) were separately used in the electrodeposition of Zn-Ni alloy films from a deep eutectic solvent.