The effect of different solidification parameters on microstructures and me-chanical properties of the unidirectionally solidified superalloy DZ38G turbine blades wasstudied under commercial production conditions.Results indicate that blade of straightcol

The carbides in a conventionally cast and rapidly solidified IN—100 typenickel-based superalloy were investigated by TEM,SEM,EDX and metallography.Theresults indicated that the obvious changes in the morphology,size,composition and distri-bution of carbid

Using SAXA,TEM techniques and measurement of mechanic properties,spinodal dynamics has been analyzed in Cu-15Ni-8Sn with and without Nb.It has beenfound that dynamic processes in these two alloys agree with LBM theory.Nb increases therate of strengthing a

TiFe alloy is one of the most promising hydronen storage materials,but itsdifficulty to activation.In this report a micro-electric-arc welding method was developedand the activtion of TiFe alloy with surfacely welded on LaNi_5 fine particles was investi-g

The plateau pressure P_(eq) and the enthalpy of formation △ H ofTiFe_xM_y(Mstands for Mn,Ni,Co,Zr,Nb,V,Crand A1,x≥0.5,y≤0.3)hydrideshave been studied.It is demonstrated that the available experimental information aboutP_(eq) can be experessed as semi-empi

The phase transformation of orthorhombic to tetragonal phase ofY-Ba-Cu-O has been investigated in details by X-ray diffraction.This transformation isof the second order or close to second order has been observed and strongly deponds on theoxygen index whi

The fundamental theory of X-ray double-crystal diffractometry is pres-ented in this paper.The applications of this technique to investigation or new structuralmaterials,which include ion implantation into semiconductor materials,single or multipleepitaxia

Based on the previous determinations of dislocation substructure of α brasssamples A,B,C,D,the nonunique nature of macrostress (σ) macrostrain (ε) curves is ex-plained by the experiments.There is a definitive relationship between σ and ε,and an one toone

The microstructure and deformation mechanisms in cyclic stress were studiedfor an Al-Mg-Si alloy 6063 treated with different aging conditions.A discussion in con-nection with fatigue properties and fracture mode of the alloy was performed.The resultsshow

Tensile properties and fracture behavior of a binary Al-Li alloy with twogroups of different grain size have been investigated.The properties are affected by thegrain size of alloy,and improved as the grain become small.The fracture behavior is closelyrel

The effects of La on structures and properties of Al-Mg-Li alloys were in-vestigated.Experiments results show:at peak aging condition,strength and elongation in-crease in the Al-5Mg-2.4Li alloy added by rare earth element La,which is resulted fromthe refi

The formation of new cuprous ion-conducting glasses in the systemCuI-Cu_2O-WO_3 was investigated by twin-roller quenching technique.The major glassforming region was found in the binary oxide system Cu_2O-WO_3 and the pseudobinarysystem CuI-Cu_2WO_4,respe

Kinetics of solid-state reactions were studied by high-temperature X-raydiffraction with 40PbTiO_3+60BaTiO_3 and 20SrCO_3+80BaCO_3+100TiO_2 as examples.The temperature dependences of rate were obtained.The kinetic data were fitted to Catermodel for a diff

This paper discussed the principle and method of Hg sensitizationphoto-chemical vapor deposition films,studied optimum process condition of fabricationSiO_2 films.The results show that optimum process conditions:substrate temperature isabout 200℃,depositi

The crystalline morphologies of polyphenylene sulfide (PPS) are affected bythe resin treatment,crystallinzation condition and processing.The texture ofpolytatrafluoroethylene (PTFE) and its thermodynamic properties are associated withwhether it has been s

This paper describes the studies of the mechanical properties of the compo-site materials of Macro-Defect-Free (MDF) cements.The mechanical properties of thespecimens prepared under different conditions have been examined.These properties Willbe varied wi