The phase equilibria of Fe corner in Fe-Mn-Al tenary system at five tempera-ture was investigated by means of electron probe microanalysis.The effect of carbon on the ex-tend of phase regions was also studied.A region of triple phases(α+β+γ)was found at 8

The effect of high current density multiple pulses on strain controlled low cyclefatigue of α-Ti was demonstrated.It is revealed that in the early stage of strain cycling unpulsedspecimen undergoes softening at first and then a hardening peak follows in s

Amorphous Ni_(70)Zr_(30) alloy was synthesized by mechanical alloying the corre-sponding elemental powders in a Spex 8000 Mixer/Mill.The microstructure and phases of thepowders at various milling times were examined,as well as microhardness and particle s

The variation of corrosive wear of Fe-Ni-Cr(Mo,Cu)alloys with load in 20%H_2SO_4 solution at corrosion,cathodic,passivation and over-passivation potential regions wasdetermined by means of a pin-disc device,and the wear track was observed.The results show

A constitutive relation including the effect of deformation damage has been in-troduced into the rigid-viscoplastic finite element method program,in order to simulatesuperplastic bulging process.The influences of strain rate sensitivity,cavity growth rate

In this work the method,which is that metal was evaporated and its vapour wascondensed under inert atmosphere,is used to synthesize Cu ultrafine particles with nanometersize.The structure and the morphology of Cu ultrafine particles are analyzed by means

Permeability,diffusivity and solubility of hydrogen in different cold deformednickel have been measured by gaseous permeation technique over the temperature range of 140to 400℃.The effects of cold working on hydrogen permeation and diffusion have been inv

The corrosion product films of two kinds of Cu-Ni alloys exposed to seawaterfor various periods of time were investigated and further analysed by AES and XPS in depth.The results show that the protective corrosion product film is thin,uniform and adherent

This paper deals with the kinetics of surface carbon concentration growth duringgas carburization.The mathematical model for quatitatively describing the kinetics of surfacecarbon concentration growth has been established.Results show that the simulated c

A new perimeter-maximum diameter method is advanced to measure the fractaldimension of the fractured surface.The measured value of the fractal dimension by this methodis independent of the length of measuring yardstick.The fractal dimension D_m determined

The grain boundary internal friction of a series of Al-Mg alloys afterannealing,quenching has been investigated.Experimental results show that,with increasingof Mg content,the width and relaxation strength of grain boundary internal friction peak de-creas

Microstructure,crystallography,electron structure and optical properties ofaluminum nitride film deposited by ion beam enhanced reactive magnetron sputtering were stu-died.The results show that the microstructure of the film is uniform and the grain size

In this paper the results of TEM study on cross section structure of Ti-N filmsby MIB are reported.There are five layers from the substrate of W18Cr4V to the top of the film:Fe-Ti amorphous alloy about 20nm,tier Ti_2N,fibre Ti_2N,fibre Ti_2N+TiN and thin

The tribological properties of MoS_2-LaF_3 cosputtered films after stored inmoist air(100%RH)were investigated in this paper.The texture and structure of the films werecharacterized by SEM,TEM and XRD techniques.The tribological properties of the films we

Polytitanocarbosilane(PTC-Ⅲ),the precursor of SiC fiber containing Ti,hasbeen synthesized directly from polysilane(PS)and titanium tetrabutoxide Ti(OBu)_4 without us-ing any reaction promoter.In this reaction,PS was decomposed into polysilane of low molec

Rheologic studies of thermotropic liquid crystalline polymers(TLCP)KU9221/polycarbonate(PC)and KU 9231/polyether sulfone(PES)blends were carried out byusing an Instron capillary rheometer.The flow curves show that the viscosity of the TLCP ishigher than t

A series of poly(ethylene terephthalate)(PET)films with different crystallinity areobtained by annealing at 11O℃ in various time intervals.It is found that the depth of trappinglevel increases with the rise of crystallinity according to the investigation

Effects of hot-pressing temperature and SiC fibre content on mechanical prop-erties of SiC fibre/LAS glass-ceramic matrix composite were investigated.Compositehot-pressed at 1200℃ and containing 30 v.-% SiC fibre showed excellent mechanical proper-ties.Fl

After treated with vacuum-baking and tank-sealing,SiC particles were putinto the melt when its solid fration was about 0.4 to 0.5.Through stirring and otherprocessing,cast composite material was manufactured,and property tests about this materialwere made