Concise Dictionary of Materials Science Part 3 ppt

... result of the preferential arrange-ment of precipitates at subboundaries (see heterogeneous nucleation), which inhibits their migration (see particle drag). Because of this, an increase of the ... of the elastic strain energy associated with lattice defects, which might contribute to the for-mation of recrystallization nuclei. Continuous recrystallization is observed in materials of ... rate.constraint Restriction of a process, e.g., of the crystal growth or plastic defor-mation.continuous cooling transformation (CCT) diagram Presentation of the evolu-tion of phase transformations...

Concise Dictionary of Materials Science Part 6 ppt

... Manifestation of the difference in diffusion rates of the atoms of different components in the case of vacancy mechanism, i.e., in substitutional solid solutions. An annealing of a sample made of two ... details, see coring, Figure C .3. XXs1s2s 3 T1T2T 3 TemperatureL + ααβLLABαA%B© 20 03 by CRC Press LLC Llaminar slip Stage of plastic deformation of a single crystal in which ... macrosegration in alloy X in the course of solidification. Points s1, s2, and s 3 show compositions of the ingot parts solidified at temperatures T1, T2, and T 3 , respectively. For further...

Concise Dictionary of Materials Science Part 9 ppt

... were present in such a particle, the particle’s free energy would be increased. In the particle, the energy of the magnetic poles at its surface is the lowest in the case of the largest pole spacing. ... distribution Histogram displaying the frequency of grains (or particles) of different sizes. The shape of grain size distribution after normal grain © 20 03 by CRC Press LLC ... Shrinkage evolves primarily through coalescence of neighboring particles under the influence of the capillary force in the neck between the particles. The pore healing also contributes to...

Concise Dictionary of Materials Science Part 13 ppt

... double kinkDotierstoff dopantDotierung microalloying; dopingDrehkorngrenze twist grain boundaryDrehkristallverfahren rotating crystal methoddreistoff ternary© 20 03 by CRC Press LLC...

Concise Dictionary of Materials Science Part 14 pptx

... Description of Microstructure of Materials, CRC, Boca Raton, FL, 1995.Liebermann, H. H., Ed., Rapidly Solidified Alloys, Wiley & Sons, New York, 19 93. Lifshin, E., Ed., Characterization of Materials, ... The Theory of Transformation in Metals and Alloys, Pergamon, Oxford, 1975.Collings, E. W., The Physical Metallurgy of Titanium Alloys, ASM, Metals Park, 1984.Cullity, B. D., Elements of X-Ray ... Behaviour of Materials, Prentice Hall, New York, 1999.Duke, P. J. and Michette, A. G., Eds., Modern Microscopies, Plenum Press, New York, 1990.Feldman, L. C., Mayer, J. W., and Picraux, S. T., Materials...

Concise Dictionary of Materials Science Part 1 pdf

... sublattices: an FCC sublattice of O2– ions and a sublattice of Al 3+ ions occupying two thirds of the octahedral sites in the first one.α-Fe Allotropic form of iron having BCC crystal structure ... Aα-Al2O 3 Pure alumina. Polycrystalline Al2O 3 is known as corundum and single crystals as sapphire. Its crystal structure can be described as consisting of two sublattices: ... metallurgy of Ti alloys, an alloying element increasing the thermodynamic stability of α-phase and thereby raising the β/(α + β)transus in the corresponding phase diagram. In physical metallurgy of...

Concise Dictionary of Materials Science Part 2 pdf

... energy of exchange interaction and equal but oppositely directed magnetic © 20 03 by CRC Press LLC Bβ-Al2O 3 Impure alumina whose main impurity is Na2O.β eutectoid Ti system Name of a ... electron channeling).0970_frame_B Page 13 Friday, August 1, 20 03 7:01 PM© 20 03 by CRC Press LLC tion, at various t, there may be different values of the elasticity modulus, its extremities ... and mechanical properties in various directions. Anisotropy of single crystals is a result of crystalline aniso-tropy, whereas that of a polycrystal is dependent on crystallographic texture...

Concise Dictionary of Materials Science Part 4 potx

... hollows of the second layer and above the C hollows of the first layer. The atom centers of the fourth layer are arranged in the hollows of the third layer and above the A centers of the first ... the hollows of the lower layer. In the FCC structure, the atom centers of the second layer are arranged in the B hollows of the first layer (see Fig-ure F.2). The atom centers of the third ... precipitates of γ′-phase are stable to coarsen-ing.garnet ferrite Ferrimagnetic oxide of stoichiometry R 3 Fe5O12, where R is a trivalent rare-earth element or yttrium.gas constant R = 8 .31 4...

Concise Dictionary of Materials Science Part 5 potx

... between the number of components, C, the number of phases, P, and the number of degrees of freedom, F, in some equilibrium thermodynamic system:F = C – P + 2in the case of varying temperature ... independently. In the case of the arbitrarily chosen temperature, the compositions of the phases are fixed, and in the case of the arbitrarily chosen composition of one of the phases at a given ... concentration of one of the components. If P = 1, then F = 2, which means that, in a single-phase field of the corresponding phase diagram, both the temperature and the com-position of the phase...

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