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Gol'dfain V. N. Krasil'nikov G. B. Orlov L. P. Roginskii V. É. Ryazanova E. V. Galeev I. M. 《Powder Metallurgy and Metal Ceramics》1988,27(10):797-799
Conclusions The nature of failure of the examined hot gas sprayed coatings in combined deformation with the substrate metal depends on the relation between the cohesion strength of the coating material and adhesion strength of the coating-substrate boundary. This ratio is determined mainly by the porosity and degree of oxidation of the coatings. The main cracks form in these coatings at stresses similar to the yield stress of the substrate metal.Translated from Poroshkovaya Metallurgiya, No. 10(310), pp. 45–48, October, 1988. 相似文献
3.
G. A. Salishchev R. M. Galeev S. P. Malysheva S. V. Zherebtsov S. Yu. Mironov O. R. Valiakhmetov É. I. Ivanisenko 《Metal Science and Heat Treatment》2006,48(1-2):63-69
The effect of deformation temperature on the grain size in titanium VT1-0 and double-phase titanium alloy VT6 is studied.
The temperature-and-rate modes of formation of submicrocrystalline structure are determined. The mechanical behavior and the
evolution of the microstructure in the course of warm severe deformation is investigated by means of successive compression
of specimens over three orthogonal directions at a temperature of 400°C for titanium and 550°C for alloy VT6. The mechanisms
of grain refinement in severe deformation are determined. It is shown that they differ depending on the composition of the
alloy. The method of “abc”-deformation is used for fabricating large-mass preforms from titanium VT1-0 and alloy VT6 with submicrocrystalline structure;
large-size sheets are produced from alloy VT6.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 2, pp. 19–26, February, 2006.
Grant of Russian foundation for fundamental research No. 05-08-65396-a. 相似文献
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Z. M. Galeev R. R. Ziganshin R. Kh. Ismagilov A. G. Shashkov 《Journal of Engineering Physics and Thermophysics》1978,35(1):841-845
A study of the positive column in an arc in a tube containing a turbulent gas flow is presented. Working formulas are given for estimating the arc parameters.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 35, No. 1, pp. 113–120, July, 1978. 相似文献
7.
A. M. Galeev 《Chemical and Petroleum Engineering》1995,31(11):679-682
Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 11, pp. 75–78, November, 1995. 相似文献
8.
This paper describes a specific influence of crystailographic texture on tensile properties of the titanium alloy VT6 under superplastic flow conditions. The texture effect has been examined on alloy states with identical microstructures but with different preferred grain orientations. Tests over wide temperature and strain-rate intervals have shown that the formation of a strong texture as a result of pretreatment of a titanium alloy leads to a decrease in flow stress, an increase in plasticity and a shift of the optimum strain-rate region to higher rates. Data on the effect of texture on the anisotropy of properties of the VT6 alloy are also presented. The present results suggest that the influence of preferred orientation on the characteristics of superplastic flow is a general phenomenon for finegrained superplastic materials. 相似文献
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E. P. Velikhov Yu.G. Degtev V. P. Panchenko P. N. Egorushkin B. G. Tkachenko E. P. Seleznev M. I. Goldovskii V. M. Razin’kina V. K. Sereda A. G. Galeev 《High Temperature》2006,44(5):637-646
Results are given of experimental and numerical investigations of electrical conductivity and mobility of electrons in the products of combustion of hydrogen-oxygen fuel seeded with cesium or potassium-sodium eutectic. The experiments were performed in model (flow rate of 0.9 kg/s, thermal power N th ≈7 MW) and large-scale experimental (flow rate ≈12 kg/s, N th ≈ 150 MW) facilities with the pressure in the combustor ranging from 2 to 6 MPa, oxidizer excess coefficients of 0.6 to 1.1, mass fractions of the seed in the fuel of 0.3 to 0.9 with the Mach number M ≈ 2.4. The basic characteristics, structural schemes, and general views of the facilities are given. When cesium is used for seeding, the experimentally obtained values of electrical conductivity may be as high as σel ≈ 20 S/m, those of σelν2 ≈ 115 S/m (km/s)2, and of electron mobility ? 0.11 T?1 at a pressure of ≈0.3 MPa, temperature of ≈2800 K, and flow velocity ν ≈ 2500 m/s. Under the same conditions for combustion products seeded with KNa eutectic, we have σel ≈ 9 S/m, σelν2 ≈ 65 (S/m)(km/s)2, and electron mobility of 0.09 T?1. 相似文献