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Article
Development of Particle and Grain Uniformity in High-Ductility Al–Zn–Mg Alloys with the Addition of Mg and Cu
The ductility of Al–Zn–Mg–(Cu) alloys was investigated by the microstructure uniformity following the addition of Cu and Mg elements. In the case of Cu-added alloy, additional particles, containing Cu elements...
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Article
Influence of Cu and Mg Content on Recrystallization Behavior in Al–Zn–Mg–Cu-Based Alloy Sheets
The recrystallization behavior of cold-rolled Al–Zn–Mg–Cu-based alloy sheets was systematically investigated by varying the Cu and Mg contents. With increasing Cu and Mg contents, the recrystallized grain size...
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Chapter and Conference Paper
Enhancing Reinforcing Efficiency of SiC Particles in Aluminum Matrix Composites with Intercalated Oxygen Atoms
In metal matrix composites (MMCs), the between the metal matrix and reinforcement critically influences of MMCs because the load can transfer at the via the interfacial shear stress. We develop a new alu...
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Article
Assessing mechanical properties of the dissimilar metal welding between P92 steels and alloy 617 at high temperature
In this study, a new welding technology of dissimilar materials, Cr-based P92 steels and Ni-based Alloy 617 is introduced and demonstrated to investigate its reliability. Firstly, multi-pass dissimilar metal w...
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Article
Open AccessMulti-functional magnesium alloys containing interstitial oxygen atoms
A new class of magnesium alloys has been developed by dissolving large amounts of oxygen atoms into a magnesium lattice (Mg-O alloys). The oxygen atoms are supplied by decomposing titanium dioxide nanoparticle...
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Article
Open AccessStrengthening behavior of carbon/metal nanocomposites
Nanocomposites reinforced with nano-scale reinforcements exhibit excellent mechanical properties with low volume fraction of the reinforcement. For instance, only an addition of 0.7 vol.% few-layer graphene (F...
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Article
Fatigue strength assessment including welding residual stress of spot welded joints subjected to cross-tension loads
This paper presents a method to assess of fatigue strength for resistance spot welded joints, which incorporates welding residual stress effects. To achieve this, first, a non-linear finite element analysis (F...
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Article
Non-linear flexible body analysis for mechanical systems
Component mode synthesis method considers only small deformation problems and cannot handle large deformation problems. This paper presents an improved mode synthesis method. Mild geometric nonlinear problems ...
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Article
Fabrication of supersaturated Cu-Sn alloy sheets and their antibacterial properties
Supersaturated Cu-Sn alloy sheets were successfully fabricated by hot-rolling mechanically alloyed (MAed) nanocrystalline powders within a range of up to 22 wt.% of Sn, and their antibacterial and ionization p...
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Article
Accelerated life prediction of fillet-type, gas-welded joints
In this paper, in order to save time and cost for the fatigue design and to develop the optimum approaches for accelerated life prediction of the fillet gas welded joints, the (Δσ)R − Nf relationship was obtained...
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Article
Fatigue design for plug/ring type gas welded joints of sts301l including welding residual stresses
This paper presents a fatigue design method for plug and ring type gas welded joints, which incorporates welding residual stress effects. A non-linear finite element analysis (FEA) was first performed to simul...
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Article
Fatigue design approach for the spot-welded T-type member using a simulated single spot-welded joint
In order to develop a fatigue design method for actual railroad car and commercial vehicle body structures using the fatigue data of simulated single spot-welded lap joints, we first analyzed the stress distri...
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Article
Deformation behavior of Zr−Al−Cu−Ni−Sn metallic glasses
A highly deformable Zr-Al-Cu-Ni-Sn alloy system without any catastrophic failure has been developed and the underling mechanism for exceptional plasticity has been investigated in terms of structural character...
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Article
Bulk glass formation in the Ni–Zr–Ti–Nb–Si–Sn alloy system
In this study, the effect of addition of Nb on glass formation in Ni–Ti–Zr–Si–Sn alloys has been studied. The composition range for bulk glass formation with Dmax > 2 mm (Dmax, maximum diameter for glass formatio...
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Article
Deformation Behavior of Ti–Zr–Ni–Cu–Be Metallic Glass and Composite in the Supercooled Liquid Region
The deformation behavior of Ti-based bulk metallic glass (BMG) and metallic glass matrix composite (MGMC), both having a multistep crystallization behavior upon heating, has been investigated in the supercoole...
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Article
A planar simple shear test and flow behavior in a superplastic Al-Mg alloy
Superplasticity is generally studied by performing tensile and gas-pressure-bulge tests. In formed parts, however, a variety of strain states, including in-plane shear, are encountered. The understanding of th...
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Article
Stress-state dependence of cavitation and flow behavior in superplastic aluminum alloys
A detailed and quantitative investigation of the stress-state dependence of superplastic cavitation in fine-grained aluminum alloys has been carried out to develop clear evidentiary support to build future mod...
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Article
Synthesis of Ni-based bulk metallic glass matrix composites containing ductile brass phase by warm extrusion of gas atomized powders
To prevent catastrophic failure by propagating highly localized shear bands and to overcome the limited dimension of metallic glass, centimeter-scale Ni59Zr20Ti16Si2Sn3 bulk metallic glass matrix composites were ...
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Article
Solidification and Microstructure Control of Mg-rich Alloys in the Mg-Zn-Y Ternary Systemya
Solidification microstructures of Mg rich Mg-Zn-Y alloys were studied by using optical microscopy, scanning electron microscopy and transmission electron microscopy. Pseudo eutectic reaction (Liquid→α-Mg + ico...
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Article
Protein concentrate and adhesives from meat and bone meal
Defatted meat and bone meal (MBM) was prepared by the removal of extractable fat with isopropyl alcohol. Proteins in the defatted MBM were extracted with 0–4% NaCl concentrations with 0.05% CaCl2 or 0.05% MgCl2 a...
