Materials Literature
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The effects of doping iron phosphate glass-ceramic wasteforms containing high level waste(HLW) with different B2O3 contents on their structures and properties were investigated.The chemical durability of glass-ceramic wasteforms was measured by dissolution rate(DR) method.The structure of the glass-ceramic wasteforms…
Three kinds of wire beam electrodes(WBE) composed of zinc and mild steel wires were developed,which were used to simulate hot-dip galvanized steel with spot coating defect at different dimensions,to obtain the spatial distributions of potential and current density and their variations with time during the galvanic cor…
To solve the problem of corrosion for steel pipeline and equipments in the mine drainage with high temperature and high salinity,inhibitor type and optimal dosage for the mine drainage was analyzed by specimen test.The results show that lime and sodium carbonate as softening agent have certain corrosion inhibiting per…
After rolling even after drawing,a fraction of martensite may occur in the microstructure of ER70S-6 wire deteriorating the ductility and drawing performance.The mid-products of drawing for test were heat treated at 350℃ and 500℃,deformed ferrite plus pearlite plus some unchanged martensite and deformed ferrite plus p…
The application and the demand of titanium metal are restricted by its high cost in spite of its excellent mechanical properties, corrosion and oxidation resistance. Titanium ores are very plentiful in the earth crust, but the complication of producing titanium by Kroll process causes the high cost of titanium metal.…
Antioxidant peptide can inhibit radical scavenging activities and be obtained by hydrolysis some proteins.The tilapia heels protein was hydrolyzed with four kinds of enzymes.Antioxdant activity was investigated using radical scavenging activity assay for superoxide free radical(O2-·),1,1-diphenyl-2-picrylhydrazine(DPP…
The tensile strain hardening behavior at room temperature was investigated for four kinds of stainless steels(410S、430、409L and 304) by means of optical microscopy,X-ray diffraction(XRD),tensile test and Brined hardness test.The characteristics and regularity of the tensile strain behavior was explored.The results sho…
The surface characteristics of SiC powder were modified by a KH-550 silane coupling agent.The process parameters of the modification were optimized,and the effect of surface modification on the dispersion stability of SiC slurry was analyzed.The results show that the SiC powder modified by silane coupling agent can no…
Study on partial embedment of projectile(PEP) is put forward with the development of modern science and technology.The outer part of PEP standing stably can form an obstacle or induce the selective object to attack it by waiting for the proper chance,or act as the loading point to realize the special application.The r…
The kinetic of austenization process in high Cr ferritic heat-resistant steel subjected to heating rates(10,100,500,2000 ℃/min) has been investigated by fitting the calculated transformed fraction according to developed model to the experimental data obtained by differential dilatometry.According to the kinetic parame…
The isolated coupling device designed according to the principles of high-pass filter is used to link the AC arc welding power and high-frequency excitation source in order to excite arc-ultrasonic by modulating the alternating plasma arc.By adding Al-5Ti-5Si as filling material,the effect of alternating current arc u…
Effect of cooling methods on GCr15 steel microstructure was analysised after hot deformation.The results show that the pearlite laminare and the diameter of pearlite grain were decreased along with the increase of cooling rate,which in the process of cooling to 715 ℃ with different cooling rate and mild cooling after…
The microstructure and tensile properties of TC4-DT alloy sheet were treated by solution treatment and ageing in alpha-beta area with different temperatures and cooling ways.The results show that,after solution treatment and ageing in alpha-beta area,the microstructure was composed of equiaxed or duplex structure.Prim…
Taking 2 250 mm hot strip temper mill as a subject,uneven wear of work roll was studied.The difference between wear of hot strip mill and cold strip mill and W shape wear of work roll of hot strip temper mill were pointed out after measurement and analysis.Integrating its wear characteristics,the function of wear mode…
Production of ML40Cr cold heading wire rod coils was described.Cold heading wire rod produced by the process of basic oxygen furnace → LF ladle refining furnace → billet continuous casting→ high-speed wire rolling was tested.The microstructure of the produced wire rod with diameter of 10 mm was ferrite and pearlite,th…
Objective To explore the characteristics and biocompatibility of nano-hydroxyapatite/ recombinant human-like collagen/polylactic acid(nHA/RHLC/PLA) composite scaffold.Methods The morphologic features of nHA/RHLC/PLA scaffold were observed under scanning electron microscopy.The porosity of the scaffold was determined v…
Cu-12%Al(mass fraction) alloy single crystal wires were prepared by the continuous unidirectional solidification.Various martensite structures were obtained by changing the melt temperature.The effects of martensite orientation and morphologies on the mechanical properties of the alloy wires were investigated.The resu…
A Schiff base ligand,L-phenylalanine-o-vanillin,and its rare earth(Tb,Eu)complexes were synthesized.The complexes were characterized by elemental analysis,IR spectrometry,UV-vis as [Tb2(H2O)2(SL)4](NO3)2,[Eu2(H2O)2(SL)4](NO3)2(SL=C17H17O4N).The photophysical properties of the ligand and complexes were investigated by…
In the bonding structure of the optical-mechanical system,for researching the influence on lens of the adhesive's curing shrinkage,the viscoelastic model is used for adhesive's simulation,and the theory solution can be gotten from the constitutive equation.The method of equivalent temperature and the Finite Element An…
When the penetration velocity is greater than the sound speed,a shock wave will be formed which leads the state parameters of the material change after shock wave front.As the shock wave affects the process of jet penetration and crater growth,Bernoulli equation can not be used directly across shock wave front.On the…