[en] Experimental values Δrho/c at c→0 are presented for 71 pairs ''matrix-homovalent impurity''. It is stated, that for most alloys (46 pairs) Δrho/c=0.1-0.6 μΩxcm/at.%, i.e. slight, and for the given matrix Δrho/c grows with moving the impurity away from the period where the matrix is. Alternation of Δrho/c at changing places of matrix with impurity turned to be slight (or was practically absent) if both metals had cubic lattice. Lattice distortion is not shown to be the main reason determining Δrho/c value. It is supposed that difference in screening matrix and impurity ion can be the reason determining Δrho/c for homovalent impurities

[en] By the method of X ray photoelectron spectroscopy the chemical composition of Fe-Ni-Si-B alloy and films on its base prepared by ion-plasma sputtering is investigated. The identity of chemical bonds in film samples and initial target is revealed, realized are in them mostly Fe-B, Ni-C, Si-Si interatomic bonds. It is shown that lono. films contact with atmosphere is the cause of difference of film composition in the near-surface region (up to 100 nm) from its main volume composition

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[en] The morphology and the crystal geometry of the γ-phase formed at different heating rates are studied in an iron-nickel alloys having the structure of lath martensite. In slow heating, the γ-phase nucleates at the boundaries of martensite crystals and inside them, a disperse lath structure being formed subsequently. In rapid heating, no nucleation of the γ-phase inside the martensite crystals is observed. A comparison of the structural and the concentration changes indicates that in slow heating the α→γ transformation proceeds through the decomposition to α-and γ-phases of different compositions, whereas in fast heating, the transformation is martensitic in character. Heating at an intermediate rate gives rise to the globular γ-phase. It is shown that a reduction in the amount of the residual austenite and stress relaxation in the martensitic structure promotes the formation of a globular γ-phase in fast heating

[en] Investigated were the character of defects and the type of dislocations occurring at deformation in the Fe-Ni, Fe-Ni-Cr, Fe-Ni-Cr-Mo alloys, depending on the alloy composition, as well as the role of these defects in the formation of deformation martensite. Structural defects in the alloys, deformed up to 40% at room temperature were investigated by the transmission electron microscopy method. It was concluded that the alloying, resulting in an increase of stacking fault energy in austenitic alloys, brings about activization of martensite transformation under plastic deformation in the absence of microtwinning. When microtwinning takes place, it becomes completitive with the process of deformation martensite formation

[en] Dependences of magnetoelastic (as well as magnetostrictive) susceptibility and their reversible and irreversible components on polarizing magnetic field intensity are investigated experimentally for annealed and strain hardened nickel. On the base of their analysis, as well as the results, obtained earlier for iron, formulated are general regularities by which all these susceptibilities are governed and possible explanation is given

[en] Calculated is the heat of mixing of melts (700 deg C) in the Na-K and Al-Mg systems using pseudopotential method. In the calculations used is the experimental data on partial functions of atom pair distribution and the Ashkroft model speudopotential. Evaluated are separate contributions and shown is the defining role of atom pairwise interaction energy in alloy formation. Calculated data agree well with experimental results

[en] Using X-ray structure analysis, the type of crystalline lattice of α-martensite in Fe(1-14%)-Mn alloys was investigated with a view to determining the tendency of iron-manganese alloys to brittle failure. The dilatometry and the optical microscopy were also employed. It was found that the lattice of α-martensite in the considered system is tetragonal, this supporting the suggestion that the degree of tetragonality depends on the content and the character of distribution in the solid solution of substitutional elements, in particular, of Mn. Presented are the concentration dependences of the α-phase unit cell parameters