Thermodynamics properties,characteristics of critical temperatures aswell as the driving force as a function of temperature and stress in thermalelastic martensitic transformations are presented.Thermodynamics treatmentsfor studying the effect of ordering

This review paper presents the important results on dislocation behaviornear the crack tip during in situ deformation.It includes:Experimental ob-servations on dislocations emission from a crack-tip during deformation andthe existance of dislocation-free

According to the orthotropy and characteristics which have an extremevalue probably also in the region of 0—90°with respect to the rolling dire-ction of an orthotropic metal sheet,besides 0°and 90°,a model describing theanisotropic pattern of mechanical p

Near-threshold fatigue.crack growth and the effect of stress ratios onthreshold values as well as corrosion behavior in an as-rolled dual-phasesteel are investigated in the lab air and 3.5% NaCl solution.It is found thatthe as-rolled dual-phase steel stud

The thermodynamic functions for the regular interstitial solution of Fe-Csolid solution are explicitly given.This regular interstitial solution model ofFe-C solution can quite satisfactorily describe both the equilibrium thermo-dynamic and the kinetic pro

The effect of long-term aging on the microstructure of γ/γ'-αMo in-situ composite at 750,850 and 950℃ for 1000h has been studied.During750℃ aging,metastable Ni_3Mo and Ni_2Mo phases as well as Ni_3Mo phasehave been found.850℃ aging accelerates the process

The process consisting of dynamical recrystallization during heat deforma-tion+static recrystallization during cold deformation is used to refine gr-ains in 18%Ni(2.45GPa)maraging steel.The average grain size of refinedaustenite is 2.5 and 5μm respectivel

SCC in 7050 Al alloy consists of three distinct processes:enhanced hy-drogen penetration along the grain boundaries in underaged and peak agedalloys,charge transfer between Zn(or Mg)segregating solutes with hydro-gen atoms in the dislocation cores and the

The oxidation behaviorr of ion plated Ni-Cr alloy film at 300℃ wasinvestigated by using LAS 3000 surface analysis system.The resultsshowed that EB ion plated Ni-Cr alloy film was oxidized at 300℃.Theoxide of Fe,Cr,Al formed during oxidation,were Cr_(2)O_3

Preparation of porous ceramic humidity sensors by adding graphite pow-der has been carefully studied.Using this method,porous ceramics of co-bait-iron oxide with very stable mechanical,physical,chemical and electri-cal properties can be made.The resistanc

The absorpted and condensed water is defined as quasi-liquid state wa-ter.The influence of composition and porosity may be considered as the va-riation of resistivity and concentration of quasi-liquid state water respectiv-ely.Based on Grotthuss proton tr

The development of thermal damage with increasing quenching tempera-ture difference for three types of Al_2O_3 ceramics has been investigated.Thecorresponding relation between residual strength and acoustic attenuation forthermal damaged ceramics has been

In this paper,based on Pipes-Pagano problem,Quasi-3D element methodis employed to study the stiffness-reduction in composite laminates dueto through delaminations between the composite layers.From the analysis,the development of damage can be divided into

The generating probability of meso dyad and meso blocks with lengthfrom n to ∞,P_m and P_(m≥n)for polypropylene were calculated from ~(13)C-NMR spectra based on a statistical biactive center model.A combination of~(13)C-NMR,IR data and the statistical mod

Influences of deformation temperature,deformation rate and materialgrains on blue brittle of low-carbon steel have been studied.The results showthat derformation temperature varies obviously with the type of serration.The growth of grains and the increase

Evidence has been presented for growth twins and twinning dendritesin the transparant organic SCN based alloys(SCN-4wt% acetone and SCN-2.5wt-% Borneol)which have low entropy of fusion.Growth twinning isdependent on the presence of particular trace consti

Based on SEM micrograph of replica and observation,a model is presen-ted in this paper for the analysis of stiffness reduction of composite lami-nates due to fiber breakage.The method of isoparametric element with ei-ght nodes is employed.The results show