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1681
Catalytic oxidation upcycling of polyethylene terephthalate to commodity carboxylic acids
Published 2024-12-01“…Moreover, during the EG oxidation process, the Au-NiO interface, composed of two types of structures, quasi “AuNi alloy” and NiO-Ov, simultaneously promote the C-H bond activation, where Ni in “AuNi alloy” exhibits an oxytropism effect to anchor the C = O bond of the intermediate, while the residual O in NiO-Ov pillages the H in the C-H bond. …”
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1682
Defect prediction and experimental study on investment casting of K4169 superalloy complex thin-walled parts
Published 2025-01-01“…The average room temperature tensile strength of the standard heat-treated K4169 alloy is 785.0 MPa, the average yield strength is 659.7 MPa, and the average elongation is 13.9%. …”
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1683
MR Angiography of Peripheral Arterial Stents: In Vitro Evaluation of 22 Different Stent Types
Published 2011-01-01“…Materials and Methods. 21 different stents and one stentgraft (10 nitinol, 7 316L, 2 tantalum, 1 cobalt superalloy, 1 PET + cobalt superalloy, and 1 platinum alloy) were examined in a vessel phantom (vessel diameters ranging from 5 to 13 mm) filled with a solution of Gd-DTPA. …”
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1684
Simulation of accelerated strip cooling on the hot rolling mill run-out roller table
Published 2016-07-01“…Winding temperature calculation error does not exceed 20°C for 98.5 % of strips of low-carbon and low-alloy steels…”
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1685
An Analytical Approach on Thermally Induced Vibrations of Nonhomogeneous Tapered Plate
Published 2013-01-01“…All the numerical computations have been performed for an alloy of aluminum, that is, duralumin. All the results are presented in the form of graphs.…”
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1686
Production and characterization of Al-xNi in situ composites using hot pressing
Published 2014-01-01“…In this study, a new metal matrix composite of aluminium was designed with the addition of nickel alloy particles. To produce in situ intermetallic formation, aluminium-nickel powder mixtures with different ratios ranging from 5 to 40 wt% Ni were consolidated at 550ºC for 15 minutes under 40 MPa pressure. …”
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1687
Solidification characteristics of atomized AlCu4Mg1-SiC composite powders
Published 2012-01-01“…In this study, rapidly solidified metal matrix composite powders have been produced by PREP (Plasma rotating electrode process) atomization. AlCu4Mg1 alloy is used as the matrix material while SiC particles, with about 650 nm average particle size, are used as the reinforcement phase. …”
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1688
Selection of the Composition with High Glass Forming Ability in Zr-Cu-Ni-Al Bulk Metallic Glasses
Published 2014-01-01“…By suppressing solidification of competing crystalline phases, a new glass forming alloy Zr51Cu24.22Ni14.06Al10.72 with the critical diameter of up to 10 mm is obtained.…”
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1689
Study of Nonlinear Deformation of FCC-AuCuSi under Pressure by the Statistical Moment Method
Published 2021-01-01“…In this work, we build the model and derive the theory of nonlinear deformation for substitutional alloy AB with interstitial atom C and face-centered cubic structure under pressure from the statistical moment method. …”
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1690
Initiation of hydrogen induced cracks at secondary phase particles
Published 2020-04-01“…Four types of steels with strongly varying microstructures are studied for this purpose, i.e. ultra low carbon (ULC) steel, TRIP (transformation induced plasticity) steel, Fe-C-Ti generic alloy, and pressure vessel steel. A strong dependency of the initiation of hydrogen induced cracks on the microstructural features in the materials is observed. …”
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1691
Amperometric Determination of Bismuth Using Gallacetophenone Phenylhydrazone with the Structural Elucidation of Complex
Published 2010-01-01“…The method was applied for the determination of bismuth in wood’s alloy. The composition of the complex corresponds to the formula Bi(C14 H14 O3 N2)2. …”
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1692
Calculation for Primary Combustion Characteristics of Boron-Based Fuel-Rich Propellant Based on BP Neural Network
Published 2012-01-01“…The results show that the calculation error of burning rate is less than ±7.3%; in the formulation range (hydroxyl-terminated polybutadiene 28%–32%, ammonium perchlorate 30%–35%, magnalium alloy 4%–8%, catocene 0%–5%, and boron 30%), the variation of the calculation data is consistent with the experimental results.…”
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1693
Influence the loading conditions and the stress concentrators on the spatial-time inhomogeneity due to the yield delay and the jerky flow: study by using the digital image correlat...
Published 2017-10-01“…The paper deals with the investigation of the temporal instabilities and spatial localization due to the L�ders behavior and the PortevinLe Chatelier effect in the carbon steel C1010 and the aluminummagnesium alloy AA5052, which manifest the unstable plastic flow. …”
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1694
Modification of the Bonora Damage Model for shear failure
Published 2018-04-01“…For the JIII controlled damage contribution, only two additional material parameters are necessary of easy experimental identification The extended model formulation was verified predicting the failure locus for AL 2024-T351 alloy. Finally, the failure locus for stress state combinations, where the minimum material ductility is expected, was determined…”
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1695
Working conditions at workplaces in finishing operations departments of foundries
Published 2023-03-01“…It has been established that in a comprehensive assessment of the working conditions of foundries working in the department of financial operations, it is necessary to take into account the duration of stay at the working equipment, the equipment and hand tools used, the type of alloy being smelted (steel, cast iron, non‑ferrous metals) and the nature of production.…”
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1696
Increasing the strength of grey cast iron by introducing of dispersed additives into the melt
Published 2018-10-01“…The basic mechanisms of increasing the strength of alloys, including methods through the introduction of the melt coherent and incoherent crystallizing structural components of the alloy dispersed particles were considered. …”
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1697
A consistent use of the Gurson-Tvergaard-Needleman damage model for the R-curve calculation
Published 2013-04-01“…Once determined all the material parameters, an MT fracture test has been simulated by a FE code, to calculate the R-curve in an aeronautical Al-based alloy. The simulation procedure produced results in a very good agreement with the experimental data.…”
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1698
A consistent use of the Gurson-Tvergaard-Needleman damage model for the R-curve calculation
Published 2013-03-01“…Once determined all the material parameters, an MT fracture test has been simulated by a FE code, to calculate the R-curve in an aeronautical Al-based alloy. The simulation procedure produced results in a very good agreement with the experimental data.…”
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1699
Estimation of fretting fatigue life using a multiaxial stress-based critical distance methodology
Published 2015-06-01“…Available fretting fatigue data, conducted on a cylinder-plane contact configuration made of Al alloy 4% Cu, were used to assess the methodology. …”
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1700
A study of the stored energy in titanium under deformation and failure using infrared data
Published 2013-04-01“…The work is devoted to the experimental study of heat dissipation caused by plastic deformation and failure processes taking place in a titanium alloy Ti-4.2Al-1.6Mn. To investigate the spatial and time evolution of temperature, a set of experiments has been carried out on plane titanium smooth specimens and specimens with pre-grown centered fatigue cracks. …”
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