Materials Literature
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The changes in the structural state of high-alloy TRIP steels during cyclic deformation in low- and high-cycle fatigue regions and the cyclic cracking resistance characteristics are analyzed. The strain-induced martensite that forms during cyclic deformation is shown to substantially affect the cyclic strength charact…
Pitting resistance of super martensitic stainless steel 00Cr13Ni5Mo2 made in China has been investigated by employing electrochemical technology and chemical immersion methods. The results showed that pitting potential of super martensitic stainless steel decreased with the increasing of NaCl concentration and tempera…
The general regularities of the electric surface flashover threshold (Ef) of polymers immersed in transformer oil and the polymers' bulk breakdown threshold (EBD) versus pulse width (τ) are obtained respectively by summarizing the experimental data in literatures. Those regularities are that Ef is proportional to τ−1a…
Abstract Review: 19 refs.
Elementary compositions of municipal solid waste incineration (MSWI) fly ash was analyzed. In addition, influence of perchloric acid concentration and liquid to solid ratio on removal efficiency of the four heavy metals was investigated. It was found that there are 11 major elements in fly ash, with content over 1%, a…
This paper presents a method which combination calculation and test, research magnetic field distribution and no-load loss of nonlinear and anisotropic lamination iron core in different compression yoke conditions. Take large generator transformer as an example, in different iron yoke sheet width conditions, measure f…
Sol-gel HfO2thin films, prepared from etoxid precursor, were deposited onto silicon wafer substrates by dip-coating. Low fluence multipulse excimer laser processing was used for sol-gel film densification. The small duration of the laser pulse heating limits the quantity of oxygen atoms arriving from the surface at th…
This paper chose triadimenol as a corrosion inhibitor of copper in 0.5mol/L sulfuric acid. The properties of corrosion inhibition were investigated by the polarization measurement and electrochemical impedance spectroscopy (EIS). Polarization curves showed that both cathodic and anodic processes of copper corrosion we…
Prepare Ni60A on the H13 steel matrix in thermal spraying. Then, the alloy layer is treated with electron beam in multichannel lapping. Microstructure, the direction of grain growth, the situation of crack initiation on surface modification are analyzed and researched by optical microscope,electron scanning microscope…
A new kind of graphite oxide (GO)-coated glass wool /EVA/EPDM foaming composite was prepared by melt blending.we choose it as absorbent, methylene blue (MB) as target pollutant to study its adsorption behavior. The foaming composite had a certain adsorption capacity of MB in the water. With the increase of proportion…
AHTS is generally known as anchor handling towing supply vessels.This essay is going to discuss different styles of AHTSs modeling design with the images it conveys through the analysis of product identifications merits and drawbacks of different parts and the analysis of corrosion-resistant materials in seawater base…
The results of studies of polycrystalline zinc-selenide samples different in color are reported. It is established that the impurity absorption band corresponding to (ionized acceptor)-(conduction band) transitions defines the color of the material.
Two kinds of polytetrafluoroethylene (PTFE) composites PTFE/GF/Gr (sample 1) and PTFE/GF/Gr/Cu (sample 2) were prepared by mixed molding method. X-ray diffraction results show that sample 2 is crystal structure, while sample 1 is amorphous/crystal structure. They were processed into the bearing bushes, which were inst…
Movie shooting caused large quantities of oil emissions into the surrounding frequently , the water quality could be contanminate. EPDM rubber was chosen as the main matrix to prepare foam oil absorption material by simple melt blending and molded foaming. The impact of DCP and AC on oil-absorbing properties of materi…
The interaction of high-temperature melts formed upon combustion of F 2 O 3 -Al thermit in a closed volume with water was explored at initial pressures of 101 kPa and 7.5 MPa using a specially designed high-pressure SHS reactor. A maximum force recorded by a force gauge installed on the outer reactor wall was around 7…
The objective of this research is to investigate the effects of copper oxide on the rheological properties of low density polyethylene (LDPE) such as viscosity, storage and loss modulus, phase angles, complex viscosity on the concentration of copper oxide and temperature. It was found that the addition of copper oxide…
Pyroelectric properties of oxyborate crystals with monoclinic structure, including ReCa4O(BO3)3(ReCOB, Re: rare-earth elements) and BiB3O6(BiBO), were investigated by charge integration method. The pyroelectric p1of ReCOB crystals was found to be negative, being on the order of -59.3~-65.5μC/(m2·°C) at 30°C, while the…
The mathematical modeling of gas flow in vane channels of axial compressors in the one-dimensional statement is considered taking into account the radial nonuniformity of flow parameters. Such an approach makes it possible to develop the fast-response algorithms for calculating the characteristics of the axial compres…
PLGA (polylactic-co-glycolic acid) is an ideal material for biodegradable medical suture. PLGA fibers and fiber membrane was prepared by using electrostatic spinning, the surface morphology of PLGA fibers and fiber membranes was observed by SEM, and mechanical properties of PLGA fibers and fiber membranes were tested…
The plastic deformation of submicrocrystalline titanium is considered. By speckle photography and X-ray diffraction analysis, the distribution of local deformation and elastic stress in the working section of the samples is studied. At the prefailure stage, a site of localized deformation is formed, with maximum compo…