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Autor:
Ivan A. Bobrikov, J. Cifre, V.V. Palacheva, Anatoly M. Balagurov, H.-R. Sinning, G. Vuillème, Igor S. Golovin, Daniele Mari
Publikováno v:
Journal of Alloys and Compounds. 790:1149-1156
Phase transitions and related anelastic effects are examined in Fe-xGa alloys (x = 19 and 27 at.%) by means of in-situ neutron diffraction, vibrating sample magnetometry, dilatometry, and three different mechanical spectroscopy techniques: torsion fo
Publikováno v:
Surface and Coatings Technology. 349:32-36
The complex failure mechanisms of metallic coatings under high thermomechanical loads can be analyzed in finite element simulations. For this purpose, mechanical properties are needed to ensure a realistic modelling approach. The development of new c
Autor:
Dmitri Golberg, Yoshio Bando, Konstantin Faerstein, Jens Bernhardt, Dmitry V. Shtansky, H.-R. Sinning, Igor S. Golovin, Maho Yamaguchi
Publikováno v:
Acta Materialia. 61:7604-7615
Melt-spun aluminum ribbons with up to 5 wt.% of embedded nano/micro boron nitride (BN) phases, namely multiwalled BN nanotubes (BNNTs) or BN microparticles (BNMPs), were fabricated by melt-spinning in an argon atmosphere. The comparative structural c
Publikováno v:
Journal of Alloys and Compounds. 577:622-632
Temperature- and amplitude dependent internal friction (IF) of cold-worked, annealed and quenched Al–Mg alloys with 0.3–12 wt.%Mg is studied in the range from room temperature to 600 °C. Two thermally activated relaxation peaks, named P1 and P2
Publikováno v:
Solid State Phenomena. 184:295-300
The annealing behaviour of temperature-dependent mechanical spectra (vibrating-reed technique) was studied on electrodeposited ultrafine-grained nickel as well as on Ni nanocomposites with small (7 nm) SiO2or larger (25 nm) Al2O3nanoparticles. From t
Publikováno v:
Acta Materialia. 59:4504-4510
The grain size of electrodeposited ultrafine grained nickel can be reduced from ∼300 nm down to ∼60–150 nm by adding ceramic nanoparticles such as Al2O3 or SiO2. The first results are presented using temperature-dependent mechanical spectroscop
Publikováno v:
Materials Science and Engineering: A. :55-58
Internal friction (IF) effects in a series of Fe–Ge–C alloys with 3–27 at.%Ge and about 0.01–0.04 at.%C have been examined and are related to possible mechanisms of anelasticity according to the different alloy structures. While Fe–3 at.%Ge
Publikováno v:
Materials Science and Engineering: A. :63-66
In Fe–Si–Al–C alloys, point-defect relaxation includes both the interstitial carbon Snoek-type relaxation, split into a “pure iron” (Fe–C–Fe) Snoek peak and an “interstitial–substitutional” (Fe–C–Me; Me = Al, Si) peak, and the
Publikováno v:
Journal of Materials Research. 22:274-284
Two different types of metallic glasses, a metal-metal-based and a metal-metalloid-based one, in both bulk and ribbon form (i.e., produced with very different quenching rates) are compared with respect to their structural relaxation behavior during c