Search Results - "Baretzky B."

Grain boundary complexions and pseudopartial wetting by Straumal, B.B., Mazilkin, A.A., Baretzky, B.

“…[Display omitted] •Grain boundary (GB) complexions are connected with wetting phenomena.•The pseudopartial GB wetting can be observed between complete and…”
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High Pressure Torsion Extrusion as a new severe plastic deformation process by Ivanisenko, Yu, Kulagin, R., Fedorov, V., Mazilkin, A., Scherer, T., Baretzky, B., Hahn, H.

“…A new method named High Pressure Torsion Extrusion (HPTE) is proposed based on a modification of the conventional high pressure torsion technique of severe…”
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Competition between precipitation and dissolution in Cu–Ag alloys under high pressure torsion by Straumal, B.B., Pontikis, V., Kilmametov, A.R., Mazilkin, A.A., Dobatkin, S.V., Baretzky, B.

“…Severe plastic deformation (SPD) always leads to the strong grain refinement in the materials. Logically, in two- and multiphase alloys SPD has to cause the…”
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Phase transitions in Cu-based alloys under high pressure torsion by Straumal, B.B., Kilmametov, A.R., Korneva, A., Mazilkin, A.A., Straumal, P.B., Zięba, P., Baretzky, B.

“…Severe plastic deformation not only leads to grain refinement but also accelerates mass-transfer and drives phase transformations in these Cu-based alloys…”
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Grain boundary films in Al–Zn alloys after high pressure torsion by Straumal, B.B., Sauvage, X., Baretzky, B., Mazilkin, A.A., Valiev, R.Z.

“…In ultra-fine grained Al–Zn alloys after high pressure torsion Al/Al grain boundaries (GBs) completely, partially or pseudopartially wetted by Zn in the solid…”
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Phase Transformations in Ti-Fe Alloys Induced by High-Pressure Torsion by Straumal, B. B., Kilmametov, A. R., Ivanisenko, Yu, Gornakova, A. S., Mazilkin, A. A., Kriegel, M .J., Fabrichnaya, O. B., Baretzky, B., Hahn, H.

“…The Ti–Fe alloys are quite important among various Ti‐based alloys doped with β‐stabilisers. Severe plastic deformation by the high pressure torsion (HPT)…”
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Review: grain boundary faceting–roughening phenomena by Straumal, B. B, Kogtenkova, O. A, Gornakova, A. S, Sursaeva, V. G, Baretzky, B

“…Similar to free surfaces, the grain boundaries (GBs) in metals, semiconductors and insulators can contain flat (faceted) and curved (rough) portions. In the…”
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Formation of the ω Phase in the Titanium—Iron System under Shear Deformation by Straumal, B. B., Kilmametov, A. R., Mazilkin, A. A., Gornakova, A. S., Fabrichnaya, O. B., Kriegel, M. J., Rafaja, D., Bulatov, M. F., Nekrasov, A. N., Baretzky, B.

“…The effect of the phase composition on the α/β-Ti(Fe)→ω-Ti(Fe) transformation in the Ti-4 wt % Fe alloy under shear strain with high-pressure torsion (HPT) has…”
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High pressure torsion of Cu–Ag and Cu–Sn alloys: Limits for solubility and dissolution by Straumal, B.B., Kilmametov, A.R., Baretzky, B., Kogtenkova, O.A., Straumal, P.B., Lityńska-Dobrzyńska, L., Chulist, R., Korneva, A., Zięba, P.

“…The high-pressure torsion (HPT) of binary copper alloys with 3, 5, 8, 10 wt. % Ag and 14 wt. % Sn has been studied at room temperature THPT. Before HPT, the…”
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Gradual softening of Al–Zn alloys during high-pressure torsion by Mazilkin, A.A., Straumal, B.B., Borodachenkova, M.V., Valiev, R.Z., Kogtenkova, O.A., Baretzky, B.

“…Evolution of the microstructure and mechanical properties of Al–30wt.% Zn alloy after the severe plastic deformation (SPD) by the high-pressure torsion has…”
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“Wetting” Phase Transitions by the Second Solid Phase for Linear Defects (Grain Boundary Triple Junctions) by Straumal, A. B., Mazilkin, I. A., Tsoi, K. V., Baretzky, B., Straumal, B. B.

“…In this work, the wetting phase transition of grain boundaries (GBs) and their triple junctions (GB TJs) by the second solid phase in the magnesium-based alloy…”
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Strengthening zones in the Co matrix of WC–Co cemented carbides by Konyashin, I., Lachmann, F., Ries, B., Mazilkin, A.A., Straumal, B.B., Kübel, Chr, Llanes, L., Baretzky, B.

“…For conventional structural and tool materials, in particular WC–Co cemented carbides, hardness and wear-resistance can usually be increased only at the…”
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Instability of a molybdenum layer under deformation of a CuMoCu laminate by high-pressure torsion by Tavakkoli, V., Mazilkin, A., Scherer, T., Mail, M., Beygelzimer, Y., Baretzky, B., Estrin, Y., Kulagin, R.

“…[Display omitted] •Under HPT of the laminate, periodic folds and vortices emerge in the harder layer.•A strain gradient caused by different deformation leads…”
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High-pressure torsion driven phase transformations in Cu–Al–Ni shape memory alloys by Straumal, B.B., Kilmametov, A.R., López, G.A., López-Ferreño, I., Nó, M.L., San Juan, J., Hahn, H., Baretzky, B.

“…Severe plastic deformation (SPD) frequently induces phase transformations like decomposition of supersaturated solid solution, dissolution of precipitates,…”
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Amorphization of crystalline phases in the Nd–Fe–B alloy driven by the high-pressure torsion by Straumal, B.B., Mazilkin, A.A., Protasova, S.G., Gunderov, D.V., López, G.A., Baretzky, B.

“…High pressure torsion (HPT) has been used for the severe plastic deformation (SPD) treatment of molten Fe–12.3at% Nd–7.6 at% B alloy (5GPa, 1rpm, 5rot, room…”
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Amorphization of Nd–Fe–B alloy under the action of high-pressure torsion by Straumal, B.B., Kilmametov, A.R., Mazilkin, A.A., Protasova, S.G., Kolesnikova, K.I., Straumal, P.B., Baretzky, B.

“…The high pressure torsion (HPT) has been used for the severe plastic deformation (SPD) treatment of liquid-phase sintered hard magnetic NdFeB-based alloy…”
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Pseudopartial wetting of W/W grain boundaries by the nickel-rich layers by Mazilkin, A.A., Straumal, B.B., Protasova, S.G., Bulatov, M.F., Baretzky, B.

“…[Display omitted] •Heavy tungsten-based alloys contain W grains and intergranular binder phase.•The W/W grain boundaries (GBs) are completely or partially…”
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Increase of Fe solubility in ZnO induced by the grain boundary adsorption by Protasova, S. G., Straumal, B. B., Mazilkin, A. A., Stakhanova, S. V., Straumal, P. B., Baretzky, B.

“…Nanograined (grain size 6–15 nm) ZnO films with various Fe content (between 0 and 40 at.%) were synthesized by the novel liquid ceramics method. The films with…”
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Contact angles by the solid-phase grain boundary wetting (coverage) in the Co–Cu system by Straumal, B. B., Kogtenkova, O. A., Straumal, A. B., Kuchyeyev, Yu. O., Baretzky, B.

“…The microstructure of binary Co–13.6 wt% Cu and Cu–4.9 wt% Co alloys after long anneals (930–2,100 h) was studied between 880 and 1,085 °C. The contact angles…”
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Softening of nanostructured Al–Zn and Al–Mg alloys after severe plastic deformation by Mazilkin, A.A., Straumal, B.B., Rabkin, E., Baretzky, B., Enders, S., Protasova, S.G., Kogtenkova, O.A., Valiev, R.Z.

“…The microstructure and hardness of binary Al–Zn and Al–Mg alloys were studied both in the as-cast state and after high-pressure torsion (HPT) with 5 torsions…”
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