According to the definition of the grand potential of an atom g,g vs chemicalpotential μ_i curves were obtained from the free energy of an atom-composition curves by ageometrical method and an important relationship had been achieved as follows:(?)Using t

The electrochemical methods were employed to study hot corrosion of Fe-Cr al-loys in molten NaCl-(Na,K)_2SO_4 at 800℃,and the reaction products were examined bymetallographic and EPMA techniques.The experimental results indicate that the addition of Crto

The shear yield stresses of HQ80C and HQ100 steel at different tempertures andstrain rates were measured.Following Rosenfield and Hahn,τ_s-L_gγ curve can be refered toas region Ⅰ and Ⅱ.It was found that the deformation mechanisms in region Ⅰ and Ⅱ are bot

A study was carried out to determine the effect of explosive treatment onhydrogen embrittlement susceptibility for 20CrMo steel with different microstructure andstrength level.The experimental results showed:explosive treatment followed by high tempera-tu

The recrystallization temperatures of an Al-Li alloy are determined and therecrystallization nucleation mechanisms are studied.The results show that the startingrecrystallization temperature of the alloy is 250℃ and the finishing recrystallization tempera

The rapid solidification and microstructure characteristics of the melt-spunAl-Si-(Ti-Ce)alloy ribbons of 50μm in thickness have been investigated.The results show thatthe addition of Ti into Al-Si alloys will decrease the undercoolability of the alloy ri

The coupling of liquid flow instability with the L/S interface instability has be-come one of the most attractive field in modern solidification science.Some researchers havepredicted that the flow parallel to L/S interface has a stabilizing effect on the

The boundary behavior and sintered properties for nano ZrO_2 materials pro-duced by hydrothermal method were systematically studied by X-ray diffraction,TEM and in-ternal friction measurements.It is found that the internal friction and modulus of as-compa

The surface compositions,silicon dangling bonds and specific areas of five kindsof SiC whiskers were measured by XPS,EPR and BET respectively.The oxidation behaviour ofthe SiC whiskers containing and not containing coatings were studied by using of TG-DTA

The paper deals with cyclic oxidation behaviour of thermal barrier coating onsimulation equipment with four kinds of coating.After analysis of oxidation dynamicsbehaviour of coatings and their deteriorating mechanism,some ways for improving coating′slife-

A mixture of two kinds of resins was synthesized.This mixture has good fluidityat certain temperature and therefore easy to mould complex shape parts.After pyrolysis,a ex-cellent carbon preform with proper strength and adjustable volume fraction of microv

The measured value of tensile strength of CVD SiC(W core)filament descendswith increasing of the specimen gauge length.The room tensile strength of the filament exhibitsa normal distribution.The average and standard deviation of the tensile strengths of t

low-temperature plasma treatment,UHMW-PE fibres,adhesion strength,etching of surface,oxygen containing group

Sm-containing copolymers of methyl methacrylate and methacrylic acid wereprepared using samarium octanoate[Sm(OCA)_3]as additive and samarium methacrylate[Sm(MAA)_3]as crosslinking agent,respectively.The study on fluorescence properties of thecopolymers s

Castor oil-co-hydroxy ethyl acrylate polyurethane prepolymer wasprepared.This prepolymer was filled with different inorganic filler and cured using ultra-violetradiation to form a series of co-networks.Their damping properties were measured by dynamicvisc

The properties and microstructure of SiCw/2024Al composite fabricated bypowder metallurgy technique were investigated.It is indicated that the properties of the compo-site can be tailor-made.Various mechanical and physical properties are obtained by adjus

In this paper,fatigue crack growth behavior and the delamination phenome-non under different stress levels of a new kind of hybrid composite-glass fiber reinforce alumi-num laminates(GLALL)have been investigated.It is found that fatigue crack growth rate

During the infiltration of C/Mg composites,trace element Be was added inmatix.That improved the oxidation resistance of liquid alloy and the distribution of fibers inmatrix.It is the result of the rich of Be at the interface of liqiud magnesium.The mecham