Wszystkie pola: Al3Ti phase - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The Kinetic of Al3Ti Phase Growth in Explosively Welded Multilayered Al/Ti Clads during Annealing under Load Conditions
Autorzy:: Petrzak, P.
Mania, I.
Paul, H.
Maj, Ł.
Gałka, A.
Powiązania:: https://bibliotekanauki.pl/articles/356880.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: explosive welding
annealing under compression
Al/Ti multilayered composites
Al3Ti phase
Opis:: Multilayered composites based on light metals are promising materials in many applications. In the present work the 15-layered clad, composed of alternately stacked of Ti(Gr.1) and AA1050-H24 alloy sheets of 1 mm thick has been investigated with respect to determination of the kinetic of the Al₃Ti phase growth. The defect-free multilayered composite was successfully formed by explosive welding technology. Then EXW samples were modified via annealing at the temperature of 600°C in closed die under pressure of 44 MPa for various times ranged between 1 and 10 h. Transmission and Scanning Electron Microscopy examinations were conducted in order to study the kinetic of the elements migration across the interfaces between the layers of the Al/Ti composite. The macro-scale observations of samples after EXW revealed that wavy interfaces were always formed in layers near the explosive charge. The increase of the distance from the top surface leads to flattening of the interface with very thin reaction layer between Al and Ti sheets. During annealing the kinetic of the Al₃Ti phase growth is similar near all interfaces and coincides with data from other works. It was found that despite the loading after 10 h of annealing still only small part of Al-sheets undergoes dissolution and the width of the reaction layer does not exceed 5-8 μm.
Źródło:: Archives of Metallurgy and Materials; 2019, 64, 4; 1549-1554
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Effect of Heat Treatment Conditions on the Morphology of α Phase and Mechanical Properties In Ti-10V-2Fe-3Al Titanium Alloy
Wpływ warunków obróbki cieplnej na morfologię fazy α i własności mechaniczne w stopie tytanu Ti-10V-2Fe-3Al
Autorzy:: Bogucki, R.
Mosór, K.
Nykiel, M.
Powiązania:: https://bibliotekanauki.pl/articles/352728.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: phase transformations
microstructure
mechanical properties
β-phase
α-phase
przemiany fazowe
mikrostruktura
właściwości mechaniczne
faza α
faza β
Opis:: The influence of heat treatment on the microstructure and mechanical properties was studied in the Ti-10V-2Fe-3Al titanium alloy for two heat treatment schemes (α + β) and β + (β + α), which resulted in different morphologies of the α phase. Scheme I resulted in the α-phase of globular morphology, whose volume fraction did not change much during annealing. Scheme II led to obtaining a needle-like α-phase, whose amount increased together with heating time. The phenomenon of stress-induced martensitic transformation was observed in the material with needle-like morphology annealed for 15 and 30 min. Longer times of annealing effected in the decay of that transformation, provided the volume fraction of α-phase exceeded 50%.
W pracy przedstawiono wyniki badan wpływu obróbki cieplnej na mikrostrukture i własciwosci mechaniczne stopu tytanu Ti-10V-2Fe-3Al, które analizowano w dwóch schematach obróbki cieplnej (α + β) oraz β + (β + α). Uzyskane mikrostruktury charakteryzowały sie rózna morfologia fazy α. W schemacie I obserwowano globularna faze α, której udział objetosciowy nie ulegał znacznym zmianom w funkcji czasu wygrzewania. W schemacie II faza α miała kształt iglasty i jej udział objetosciowy wzrastał z czasem wygrzewania. W próbkach o iglastej morfologii fazy α dla czasów wygrzewania 15 min. i 30 min. zaobserwowano wystepowanie zjawiska przemiany martenzytycznej indukowanej naprezeniem. Zastosowanie dłuzszych czasów wygrzewania ujawniło zanik dodatkowej.
Źródło:: Archives of Metallurgy and Materials; 2014, 59, 4; 1269-1273
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: A Mössbauer and structural study of disordered alloys Fe3-xTixAl (0 < x < 1)
Autorzy:: Brząkalik, K.
Frąckowiak, J.
Powiązania:: https://bibliotekanauki.pl/articles/148880.pdf
Data publikacji:: 2003
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: Fe2TiAl Heusler phase
Fe-Ti-Al system
Mössbauer spectroscopy
Opis:: A series of the disordered Fe3-xTixAl (x = 0, 0.2, 0.45, 0.55, 0.65, 0.70, 0.75, 1) alloys obtained by arc-melting were studied. Directly after melting the samples were mechanically crashed and in that form examined by the structural and Mössbauer effect methods. The alloys were strongly disordered, but it was possible to identify, apart from Fe-bcc phase, the origins of forming such phases as Fe2TiAl Heusler phase, Fe3Al with DO3 structure, FeAl and FeTi with B2 structure and non-stechiometric Fe2Ti Laves phase with hexagonal C14 structure. For Ti concentration up to x = 0.45, the disordered Fe-bcc phase dominates. For Ti concentration from x = 0.55 to x = 1, the Fe2TiAl phase coexists with FeAl phase (for x = 0.55, 0.65) and with FeTi phase (x = 0.7 and 0.75). In a sample with the nominal Fe2TiAl composition of Fe2TiAl Heusler phase, a non-stoichiometric Fe2Ti Laves phase with hexagonal C14 structure was observed.
Źródło:: Nukleonika; 2003, 48,suppl.1; 13-16
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The Evaluation of Resistance to Cracking of Ti10V2Fe3Al Alloy Characterized by Different Morphology and Volume Fraction of α-Phase Precipitates
Autorzy:: Bogucki, R.
Basiaga, M.
Żyra, A.
Powiązania:: https://bibliotekanauki.pl/articles/355888.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: fracture mechanics
Rice's J-integral
stress induced martensite
SIM
metastable β titanium alloy
Opis:: The paper presents the results of the Ti10V2Fe3Al alloy crack resistance assessment using the Rice’s J-integral technique as a function of morphology and volume fraction of α-phase precipitates. Titanium alloys characterized by the two-phase structure α + β are an interesting alternative to classic steels with high mechanical properties. Despite the high manufacturing costs and processing of titanium alloys, they are used in heavily loaded constructions in the aerospace industry due to its high strength to density ratio. The literature lacks detailed data on the influence of microstructure and, in particular, the morphology of α phase precipitates on fracture toughness in high strength titanium alloys. In the following work an attempt was made to determine the correlation between the microstructure and resistance to cracking in the Ti10V2Fe3Al alloy.
Źródło:: Archives of Metallurgy and Materials; 2019, 64, 2; 759-764
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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