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Перегляд Проблемы прочности, 2008, № 1 за назвою

Репозиторій DSpace/Manakin

Перегляд Проблемы прочности, 2008, № 1 за назвою

Сортувати за: Порядок: Результатів:

  • Sestak, P.; Cerny, M.; Pokluda, J. (Проблемы прочности, 2008)
    The uniaxial and hydrostatic deformations of martensitic structure B19’ of NiTi shape memory alloy are studied using first-principles calculations. The bulk and Young’s moduli and the theoretical strength under uniaxial ...
  • Dobes, F.; Perez, P.; Milieka, K.; Garces, G.; Adeva, P. (Проблемы прочности, 2008)
    A detailed knowledge of dependence of mechanical properties on orientation in materials prepared by directional processes may present an important factor influencing the design of construction parts. Toward this end, the ...
  • Miskuf, J.; Csach, K.; Jurikova, A.; Ocelik, V.; Bengus, V.; Tabachnikova, E. (Проблемы прочности, 2008)
    The deformation and fracture behavior of Zr50Ti165Cu15Ni185 bulk amorphous metal in the form of a thin ribbon have been determined in tensile test at room temperature. The fracture is localized in a major shear band and ...
  • Uematsu, Y.; Tozaki, Y.; Tokaji, K.; Nakamura, M. (Проблемы прочности, 2008)
    Cast aluminum alloy, AC4CH-T6, and wrought aluminum alloy, A6061-T6, werejoined by means of friction stir welding (FSW) technique. The effect of microstructure and post heat treatment on fatigue behavior of the dissimilar ...
  • Zapletal, J.; Vechet, S.; Kohout, J.; Obrtlik, K. (Проблемы прочности, 2008)
    S — N curve of austempered ductile iron was obtained in the range of lifetime including low cycle fatigue domain and high cycle fatigue domain up to 108 cycles. Ultimate tensile strength is used as a limiting value of the ...
  • Nezbedova, E.; Fiedler, L.; Majer, Z.; Vlach, B.; Knesl, Z. (Проблемы прочности, 2008)
    Multilayer pipes composed of various materials improve partially the properties of a pipe system and are frequently used in service. To estimate the lifetime of these pipes the basic fracture parameters have to be measured. ...
  • Hansson, P.; Melin, S. (Проблемы прочности, 2008)
    We have studied the effect of a grain boundary in front of a short edge crack on its propagation under cyclic loading conditions in bcc iron. The used model is a combination of a discrete dislocation formulation and a ...
  • Schindler, I.; Suchanek, P.; Rusz, S.; Kubecka, P.; Sojka, J.; Heger, M.; Liska, M.; Hlisnikovsky, M. (Проблемы прочности, 2008)
    We present a new methodology of determination of hot-cracking f metallic materials, which is based on laboratory application of the wedge rolling test and computer processing of the results obtained. The experiment was ...
  • Stradomski, Z.; Pirek, A.; Dyja, D. (Проблемы прочности, 2008)
    We analyze the influence of small modification of chemical composition of G200CrMoNi4-3-3 cast steel on the morphology of carbides and on material crack resistance. Using the Termo-Calc software the volume fraction of ...
  • Konecna, R.; Nicoletto, G.; Majerova, V.; Baicchi, P. (Проблемы прочности, 2008)
    Surface modification processes are increasingly used to fully exploit material potential in fatigue critical applications because fatigue strength is sensitive to surface conditions. Nitriding is extensively adopted with ...
  • Shanyavskii, A.A.; Potapenko, Yu.A. (Проблемы прочности, 2008)
    In-service propagatingfatigue cracks were examined in EI-698VD superalloy thin turbine covered disks ofthefirst, second, and third stages ofa TV3-117VK helicopter engine within service lifes of 200-1800 h. To reveal causes ...
  • Jacobsson, L.; Persson, C.; Melin, S. (Проблемы прочности, 2008)
    The fatigue crack propagation rate is influenced by various mechanisms at the very vicinity of the crack tip, e.g., local plasticity and/or creep, microcracking, crack branching, and crack closure induced by plasticity and ...
  • Zarikovskaya, N.V.; Zuev, L.B. (Проблемы прочности, 2008)
    The effect of the grain size as a basic structural parameter on plastic strain macrolocalization has been studied for polycrystalline aluminum. The mathematical form of the above dependence has been verified. The limiting ...
  • Nowak, S.; Ochin, P.; Pasko, A.; Guerin, S.; Champion, Y. (Проблемы прочности, 2008)
    Bulk metallic glasses have a very high corrosion resistance and mechanical strength. Bulk metallic glasses show elastic-perfectly plastic behavior with an extended region of elastic strain (≈ 2%). But at room temperature ...
  • Musalek, R.; Hausild, P.; Siegl, J.; Bensch, J.; Slama, J. (Проблемы прочности, 2008)
    Typical thicknesses ofhigh-strength steels (HSS) sheets used in the car industry are inapplicablefor standardized testingprocedures. The aim ofthis study is topropose an appropriate methodologyfor testing and comparing of ...
  • Valek, S.; Hausild, P.; Kytka, M. (Проблемы прочности, 2008)
    The influence of irradiation on fracture properties of 15Ch2MFA pressure vessel steel is studied. The distribution of inclusions and carbides is characterized. The quantitative fractography of broken Charpy specimens is ...
  • Shukaev, S.; Gladskii, M.; Zakhovaiko, A.; Panasovskii, K. (Проблемы прочности, 2008)
    A new method of fatigue life assessment under multiaxial low-cycle regular and irregular loading is proposed, which is based on the modified Pisarenko-Lebedev criterion, the linear damage accumulation hypothesis, and the ...
  • Dyja, D.; Stradomski, Z.; Pirek, A. (Проблемы прочности, 2008)
    The effect of increased carbon content and heat treatment parameters on the microstructure and selected properties of ferritic-austenitic duplex cast steel is discussed. Test results show that the cast steel microstructure ...
  • Tabachnikova, E.D.; Podolskiy, A.V.; Smirnov, S.N.; Csach, K.; Miskuf, J.; Saitova, L.R.; Semenova, I.P; Valiev, R.Z.; Bengus, V.Z. (Проблемы прочности, 2008)
    Microstructural regularities of failure surfaces and low-temperature mechanical characteristics in quasistatic uniaxial tension and compression have been studied for ultra-fine grained structural states of Ti-6Al-4V ELI ...
  • Kovarik, O.; Siegl, J. (Проблемы прочности, 2008)
    The microstructural characteristics such as porosity, splat morphology and grain size of thermally sprayed coatings made of both ceramic and refractory metals are investigated. Al2O3 and Cr2O3 coatings represent ceramic ...

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