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Showing papers in "Journal of Alloys and Compounds in 2018"


Journal ArticleDOI
TL;DR: In this paper, the microstructures of HESAs consisting of γ and γ′ phases are similar to that of Ni-base superalloys and refractory HEAs.

441 citations


Journal ArticleDOI
TL;DR: In this article, the selective laser melting (SLM) of an equiatomic CoCrFeMnNi high-entropy alloy (HEA) powder was studied, with emphasis on its non-equilibrium microstructural evolution and mechanical properties.

357 citations


Journal ArticleDOI
TL;DR: In this paper, the authors focused on the pure nickel oxide based materials synthesizing by various synthetic methods and reported the storage mechanism of supercapacitors with their types, characteristics of the electrode material, different synthesis methods of nickel oxide electrode material and different electrolyte materials.

317 citations


Journal ArticleDOI
TL;DR: In this article, porosity levels in Stainless Steel (SS) 316L parts manufactured with SLM were studied in relation to the effects of process parameters on microstructure and material hardness.

272 citations


Journal ArticleDOI
TL;DR: In this paper, a review on the effects of some common alloying elements on the microstructural and mechanical property stability control of Ni-based superalloys is presented, including base elements, mechanical strengthening elements, long term stability elements and the oxidation resistance elements.

249 citations


Journal ArticleDOI
TL;DR: In this article, the cooling rate of melt pool induced discrepancy in microstructural gradient and element distribution during selective laser melting (SLM), thereby resulting in decrease in microhardness and wear resistance from surface to inside with a range of ∼100μm of SLM- manufactured AlSi10Mg alloy.

249 citations


Journal ArticleDOI
TL;DR: In this paper, the authors provide an overview of the most recent progress in glass ceramics-based optical thermometric media and provide fundamental principles for fluorescence intensity ratio and lifetime-based temperature sensing.

242 citations


Journal ArticleDOI
TL;DR: In this paper, the application of graphene and graphene oxide in the field of corrosion protection, including graphene films and graphene-based organic coatings, was briefly introduced, and the preparation methods, protective performance, corrosion protective mechanism, practical problems and the improvement methods were emphasized.

221 citations


Journal ArticleDOI
TL;DR: In this paper, laser shock peening was combined with wire-arc additive manufacturing to refine microstructure, modify stress state and enhance tensile properties of as-printed 2319 aluminum alloy.

219 citations


Journal ArticleDOI
TL;DR: In this paper, a series of novel Na 3 Sc 2 (PO 4 ) 3 :Eu 3+ phosphors with different Eu 3 + doping concentrations were synthesized by conventional solid-state method and their crystal structure, morphology, luminescence properties, temperature-dependent emission spectra, decay curves and quantum efficiency were investigated in detail.

209 citations


Journal ArticleDOI
TL;DR: In this paper, a multi-scale analytical model is developed to calculate the effective elastic modulus of a hybrid aluminum matrix nanocomposite (HAMNC) reinforced with silicon carbide (SiC) whiskers and SiC nanoparticles.

Journal ArticleDOI
TL;DR: In this article, the functional BaFe12-xDIxO19 (DI=Al3+, In3+ 0.1, O2− - Fe3+ superexchange interactions were explained using precision neutron powder diffraction and Mossbauer spectroscopy.

Journal ArticleDOI
TL;DR: In this paper, the effect of Co 2+ ions doping on ZnFe 2 O 4 nanoparticles in terms of morphology, magnetic and optical properties was investigated in a co-precipitation method.

Journal ArticleDOI
TL;DR: In this paper, a set of equiatomic alloys (CrFeCoNi, CrCoNi and CrFeNi) were determined as a function of temperature over the range 293'k-1000'k and thermal expansion coefficients were determined for these alloys over the temperature range 100'k -673'k.

Journal ArticleDOI
TL;DR: In this paper, the authors investigated the martensite decomposition in various annealed samples by XRD, SEM and TEM, and found that annealing at 700°C or 800°C for 2´h was not sufficient to obtain a fully decomposed microstructure.

Journal ArticleDOI
TL;DR: In this paper, the authors used optical microscopy and scanning electron microscopy (SEM) to characterize the microstructure of the Ti6Al4V ELI samples.

Journal ArticleDOI
TL;DR: In this article, the authors demonstrate that carbon nanotubes (CNTs) can be loaded by binary metal oxides in an appropriate dispersion agent, and the loaded sample is served as the foundation for enhanced hydrogen sorbent substrate.

Journal ArticleDOI
TL;DR: In this article, microstructure evolution in P91 steel and their weldments are reviewed in as-virgin and heat treatment and creep exposure condition, and the role of grain coarsening, Cr/Fe ratio, lath widening and dislocation density on creep rupture life of base metal and weldments is discussed.

Journal ArticleDOI
TL;DR: In this article, an optimum post-SLM heat treatment scheme at a temperature below the β transus temperature was proposed based on the understanding of microstructure evolution occurring during subtransus treatment and the resultant mechanical properties of the alloy.

Journal ArticleDOI
TL;DR: In this paper, nano-sized γ-Al2O3 particles were synthesized by modified sol-gel method using new precursors, and the removal efficiency of heavy metal ions (lead and cadmium) in the adsorption process by the as-synthesized alumina nanoparticle has been investigated and the effect of various experimental parameters such as pH, adsorbent dosage and exposure time were examined.

Journal ArticleDOI
TL;DR: In this paper, hierarchical porous ZnO microspheres were synthesized by hydrothermal treatment of precursor zinc salts and subsequent low-temperature (300°C) calcination for 2.5h, and the photocatalytic properties of the as-prepared hexagonal wurtzite zinc oxide were examined by degrading Rhodamine B under simulated solar light.

Journal ArticleDOI
TL;DR: In this article, a facile one-pot hydrothermal strategy was used to produce hybrid nanocomposites of reduced graphene oxide/multi-walled carbon nanotubes/zinc ferrite (RGO/MWCNTs/ZnFe2O4).

Journal ArticleDOI
TL;DR: In this article, an electrochemical sensor based on an Au-Cu2O/rGO nanocomposite for selective and simultaneous detection of dopamine and uric acid was developed.

Journal ArticleDOI
TL;DR: Inconel 718 superalloy was fabricated by selective laser melting (SLM) and subsequently subjected to different heat treatments as discussed by the authors, and the morphology, distribution and crystallography of precipitates and their formation mechanisms are discussed and analyzed.

Journal ArticleDOI
TL;DR: In this article, the corrosion inhibition performance of pyran derivatives (APs) on N80 steel in 15% HCl was investigated by electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, weight loss, contact angle and scanning electron microscopy (SEM) measurements, DFT and molecular dynamic simulation.

Journal ArticleDOI
Meng–Ke Wu1, Chen Chen1, Jiao–Jiao Zhou1, Fei–Yan Yi1, Kai Tao1, Lei Han1 
TL;DR: In this paper, NiO nanospheres calcined at 400°C (N400) have been successfully prepared by the calcination of Ni-based MOF precursor at proper temperatures, and the morphology and phase structure of NiO samples were characterized by SEM, TEM, XRD and FTIR.

Journal ArticleDOI
TL;DR: In this article, the piezo-electrochemical effect of BaTiO3 nanofibers is realized through utilizing the product of piezoelectric effect and electro-chemical redox effect.

Journal ArticleDOI
TL;DR: In this paper, a review of titanium matrix composites (DRTMCs) is presented, which includes recent development in the reinforcements, microstructure characteristics, mechanical properties as well as modeling and calculation.

Journal ArticleDOI
TL;DR: In this article, a series of glasses in the xTeO2-(70-x)ZnF2-25As2O3-5Sm 2O3 systems have been synthesized via conventional melt quenching method and the narrow beam geometry method has been used to measure the linear attenuation coefficient for this glass systems at the energy range of 0.123-1.33

Journal ArticleDOI
TL;DR: In this article, high quality β-Ga2O3 film is grown by using N2O as reaction gas for the fabrication of high performance solar-blind-ultraviolet photodetector.