Wuhan, China

Wuhan Iron and Steel Corp. 公司 pinyin: Wǔhàn Gāngtiě Gōngsī) was founded in 1958 in Qingshan, Wuhan, Hubei, China Wikipedia.


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Huang J.,Hubei Engineering University | Peng Q.,Hubei Engineering University | Hu X.,Hubei Engineering University | Du Y.,Wuhan Iron And Steel Company
Construction and Building Materials | Year: 2017

Concrete aggregates have a random and complex shape, which has been shown to affect the mechanical properties of concrete. Commonly, they are approximated as spheres or polyhedra in 3D cases, or further simplified as circles or polygons in 2D cases. This study presents a numerical procedure for the stochastic characterization and representation of the aggregates and microcracks in concrete and the generation of virtual 3D random concrete mesostructures. Central to the proposed simulation method is the generation of realistic 3D aggregate point clouds based on an improved decomposition scheme and the conversion of the point clouds to 3D aggregate microstructures using a hybrid alpha-shape-implicit-surface algorithm. To optimize the simulation results, an image processing procedure and a set of representative aggregates are developed. It is shown that the proposed procedure is capable of reproducing high-quality concrete mesostructures with microcracks, which opens the door to unravelling complex microstructural behaviors of cement-based materials. © 2017 Elsevier Ltd


— Global Structural Steel Industry Report offers market overview, segmentation by types, application, countries, key manufactures, cost analysis, industrial chain, sourcing strategy, downstream buyers, marketing strategy analysis, distributors/traders, factors affecting market, forecast and other important information for key insight. Companies profiled in this report are Gerdau S.A, Arcelormittal, Tata Steel, Nippon Steel Sumitomo Metal, Posco, Thyssenkrupp, Jsw Steel, Essar Steel, Tisco, Southern Steel Company (Ssc), Pomina, Krakatau Steel, Sahaviriya Steel Industries, G Steel Pcl, Samc, Capitol Steel, Pag-Asa Steel Works, Inc. (Pswi), Steel Centre Philippines Inc. (Scpi), Baosteel, Ansteel, Wuhan Iron And Steel, Shagang Group, Shandong Iron & Steel Group, Ma Steel, Bohai Steel, Shougang Group, Valin Steel, Anyang Iron & Steel Group, Baogang Group in terms of Basic Information, Manufacturing Base, Sales Area and Its Competitors, Sales, Revenue, Price and Gross Margin (2012-2017). Split by Product Types, with sales, revenue, price, market share of each type, can be divided into • Carbon Structure Steel • Alloy Structure Steel • Others Split by applications, this report focuses on sales, market share and growth rate of Structural Steel in each application, can be divided into • Construction Industry • Transportation Industry • Machinery Industry • Others Purchase a copy of this report at: https://www.themarketreports.com/report/buy-now/424218 Table of Content: 1 Structural Steel Market Overview 2 Global Structural Steel Sales, Revenue (Value) and Market Share by Manufacturers 3 Global Structural Steel Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 4 Global Structural Steel Manufacturers Profiles/Analysis 5 North America Structural Steel Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 6 Latin America Structural Steel Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 7 Europe Structural Steel Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 8 Asia-Pacific Structural Steel Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 9 Middle East and Africa Structural Steel Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 10 Structural Steel Manufacturing Cost Analysis 11 Industrial Chain, Sourcing Strategy and Downstream Buyers 12 Marketing Strategy Analysis, Distributors/Traders 13 Market Effect Factors Analysis 14 Global Structural Steel Market Forecast (2017-2022) 15 Research Findings and Conclusion 16 Appendix Inquire more for more details about this report at: https://www.themarketreports.com/report/ask-your-query/424218 For more information, please visit https://www.themarketreports.com/report/2017-2022-global-top-countries-structural-steel-market-report


A facile, one-step synthesis of nanocomposites using multiwalled carbon nanotube coating gold nanoparticles (MWCNTs-Au) was presented. Scanning electron microscopy and UV-vis spectroscopy confirmed that more than 97% of gold nanoparticles have been loaded on the surface of carbon nanotubes without congregation. The formed MWCNTs-Au nanocomposites offered an extremely hydrophilic surface for biomolecule adhesion, leading to a stable acetylcholinesterase (AChE) biosensor. Due to the excellent conductivity of the nanocomposites, the immobilized AChE showed favorable affinity to acetylthiocholine (ATCl) and could catalyze the hydrolysis of ATCl with a Km app value of 268 μM to form thiocholine, which was then oxidized to produce a detectable and fast response. Based on the inhibition of organophosphates (OPs) on the enzymatic activity of AChE, the magnitude of peak current from thiocholine on the biosensor is a simple and effective way to biomonitoring of OPs exposure. Using malathion as a model compound, the inhibition of malathion was proportional to its concentration ranging from 1.0 to 1000 ng mL-1 and from 2 to 15 μg mL-1, with a detection limit 0.6 ng mL-1. The developed biosensor exhibited good reproducibility and acceptable stability, thus providing a new promising tool for analysis of enzyme inhibitors. © 2009 Elsevier B.V. All rights reserved.


This work described a highly sensitive amperometric biosensor for organophosphates (OPs) pesticides based on immobilization of acetylcholinesterase (AChE) on multiwall carbon nanotubes (MWCNTs)-β-cyclodextrin (β-CD) composite modified glassy carbon electrode. The synthesized composite through polymer wrapping strategy has been characterized by attenuated total reflection Fourier-transform infrared spectra (ATR-FTIR) measurement and scanning electron microscopy (SEM) images. Due to the good dispersibility and porous structures of MWCNTs-β-CD composite, the resulting surface provided a favorable microenvironment for acetylcholinesterase biosensor fabrication and maintained the bioactivity of AChE for screening of OPs exposure. MWCNTs promoted electron-transfer reactions at a lower potential and catalyzed the electro-oxidation of thiocholine, thus increasing detection sensitivity. Based on the inhibition of OPs on the AChE activity, using dimethoate as a model compound, the inhibition of dimethoate was proportional to its concentration ranging from 0.01 to 2.44 and 2.44 to 10.00 μM, with a detection limit was 2 nM (S/N = 3). The developed biosensor exhibited good reproducibility and acceptable stability, thus providing a new promising tool for analysis of enzyme inhibitors. © 2010 Elsevier B.V. All rights reserved.


Zhai W.,Wuhan University of Technology | Shi X.,Wuhan University of Technology | Wang M.,Wuhan Iron And Steel Company | Xu Z.,Wuhan University of Technology | And 3 more authors.
Wear | Year: 2014

Investigations in graphene of controlling friction and wear of Ni3Al matrix self-lubricating composites (NMSC) are needed for moving mechanical assemblies. The friction and wear behaviors of NMSC with graphene nanoplatelets (GNPs) against Si3N4 ball are tested using a constant load of 10N and a constant speed of 0.2m/s from room temperature (RT) to 600°C. Tribological test results have revealed that small amounts of GNPs in the NMSC are able to drastically reduce the friction coefficients and wear rates over the effective operating range (RT-400°C). A possible explanation for these results is that the refinement of grains accompanying the slippage of laminated sheets between GNPs could provide a source of the stress dissipation and form the GNP protective layer during sliding process, leading to the reduction of wear rates as well as the friction coefficients. It is concluded that GNPs hold great potential applications as an effective solid lubricant for moderate loads and stress, and can be easily used for the preparation of the self-lubricating composites in the future. © 2013 Elsevier B.V.


Du D.,Central China Normal University | Ye X.,Central China Normal University | Cai J.,Wuhan Iron And Steel Company | Liu J.,Central China Normal University | Zhang A.,Central China Normal University
Biosensors and Bioelectronics | Year: 2010

A simple method to immobilize acetylcholinesterase (AChE) on polypyrrole (PPy) and polyaniline (PANI) copolymer doped with multi-walled carbon nanotubes (MWCNTs) was proposed. The synthesized PAn-PPy-MWCNTs copolymer presented a porous and homogeneous morphology which provided an ideal size to entrap enzyme molecules. Due to the biocompatible microenvironment provided by the copolymer network, the obtained composite was devised for AChE attachment, resulting in a stable AChE biosensor for screening of organophosphates (OPs) exposure. MWCNTs promoted electron-transfer reactions at a lower potential and catalyzed the electro-oxidation of thiocholine, thus increasing detection sensitivity. Based on the inhibition of OPs on the AChE activity, using malathion as a model compound, the inhibition of malathion was proportional to its concentration ranging from 0.01 to 0.5. and mu;g/mL and from 1 to 25. and mu;g/mL, with a detection limit of 1.0. ng/mL. The developed biosensor exhibited good reproducibility and acceptable stability, thus providing a new promising tool for analysis of enzyme inhibitors. © 2010 Elsevier B.V.


Luo Y.,Wuhan Iron And Steel Company
Advanced Materials Research | Year: 2013

The precipitation hardened steel 10Ni3MnCuAl after solution heat treatment and aging at 510°C is investigated by three dimensional atom probe (3DAP). The results show that the Ni, Mn, Al and Cu distribute uniformly in the steel after solution heat treatment, but they form multicomponent precipitates after aging and cause the hardness increase. The concentration ratio between Ni and Al in multicomponent precipitates is roughly 1, while the concentration of Fe decreases, and the distance between concentration peak of Cu and those of Ni and Al becomes wider with the aging time, which is related to the precipitation character of Cu in α-ferrite. © (2013) Trans Tech Publications, Switzerland.


Tang Y.,Wuhan University of Science and Technology | Luo W.,Wuhan Iron And Steel Company
Advances in Engineering Materials and Applied Mechanics - Proceedings of the 5th International Conference on Machinery, Materials Science and Engineering Applications, MMSE 2015 | Year: 2016

High-speed vibration milling method has been used to synthesize Molybdenum Nitride (Mo2N) with hollow spherical nanostructures which has high surface area (218.5 m2 g−1) by the reaction of MoCl5 and NaNH2 directly. The phase structure and morphology of product are analyzed by powder X-Ray Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), and Transmission Electron Microscopy (TEM). The thermal stability and surface area of the products are also investigated by Thermogravimetric Analysis (TGA) and BET, respectively. Such highly dispersed nitride material is expected to have applications in catalysis because of the large surface area. © 2016 Taylor & Francis Group, London.


Luo Y.,Wuhan Iron And Steel Company
Advanced Materials Research | Year: 2013

The classification, properties of the domestic prehardened plastic mould steel are reviewed, the composition design and heat treatment process improvement in the chinese prehardened plastic mould steel are commented, its development direction is pointed out. Quenched and tempered prehardened steel has been developed and upgraded based on foreign steels, while non-quenched and tempered prehardened was invented by ourselves, and has been researching and developing because of its good cost performance ratio. © (2013) Trans Tech Publications, Switzerland.


4Cr5MoSiV1 steel, a widely used for hot work mould, contains Cr, Mo, V alloying elements that easily form carbides. The Micro-area chemical composition, microstructure, impact toughness and thermal fatigue behavior of 4Cr5MoSiV1 and 4Cr5MoSiV1H steels were investigated, the latter was carried on high temperature homogenizing and solution based on the former. The results showed that bulk eutectic carbides and elements segregation contained in the 4Cr5MoSiV1 steel reduced the impact toughness. But the impact toughness of the core of the mould steel block and thermal fatigue property of 4Cr5MoSiV1H steel were improved because the elements segregation and eutectic carbides was eliminated through the high temperature homogenizing and solution. © (2012) Trans Tech Publications, Switzerland.

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