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Результаты исследований: Вклад в журнал › Статья › Рецензирование
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TY - JOUR
T1 - Fatigue Resistance of the Sheets of Heat-Resistant Titanium Alloys
AU - Kalienko, M.
AU - Popov, A.
AU - Volkov, A. V.
AU - Leder, M.
AU - Zhelnina, A.
N1 - This work was supported by the Ministry of Science and Higher Education of the Russian Federation within the framework of the Program of Development of the Ural Federal University in accordance with the strategic academic leadership program \u201CPrioritet (priority)\u20132030.\u201D
PY - 2024
Y1 - 2024
N2 - The results of a study of the resistance to fatigue fracture of the sheets made of the heat-resistant titanium alloys VT18U (Ti–6.5Al–4.3Zr–2.4Sn–0.8Nb–0.7Mo–0.1Si, wt %), VT8 (Ti–6.4Al–3.4Mo–0.3Si, wt %), and VT25U (Ti–6.51Al–3.76Zr–1.71Sn–3.94Mo–0.5W–0.13Si, wt %) have been presented. Fatigue curves have been obtained in the initial state and in the oxidized one after isothermal annealing at a temperature of 560°C for 1000 h in air. It has been established that after annealing, the fatigue resistance of all oxidized alloys in the low-cycle region decreases by an order of magnitude. The fatigue limit of the oxidized alloys VT18U and VT25U does not change and is of about 320 MPa. The high-cycle fatigue limit of the VT8 alloy decreases from 300 MPa in the initial state to 230 MPa in the oxidized state. It has been established that after annealing, the phase composition of an oxide of 250 nm in thickness on the surface of the alloys is different and contains the phases of anatase and rutile for the VT18U and VT25U alloys and contains predominantly rutile for the VT8 alloys, which is why the fatigue limit of the oxidized alloys differs. © Pleiades Publishing, Ltd. 2024.
AB - The results of a study of the resistance to fatigue fracture of the sheets made of the heat-resistant titanium alloys VT18U (Ti–6.5Al–4.3Zr–2.4Sn–0.8Nb–0.7Mo–0.1Si, wt %), VT8 (Ti–6.4Al–3.4Mo–0.3Si, wt %), and VT25U (Ti–6.51Al–3.76Zr–1.71Sn–3.94Mo–0.5W–0.13Si, wt %) have been presented. Fatigue curves have been obtained in the initial state and in the oxidized one after isothermal annealing at a temperature of 560°C for 1000 h in air. It has been established that after annealing, the fatigue resistance of all oxidized alloys in the low-cycle region decreases by an order of magnitude. The fatigue limit of the oxidized alloys VT18U and VT25U does not change and is of about 320 MPa. The high-cycle fatigue limit of the VT8 alloy decreases from 300 MPa in the initial state to 230 MPa in the oxidized state. It has been established that after annealing, the phase composition of an oxide of 250 nm in thickness on the surface of the alloys is different and contains the phases of anatase and rutile for the VT18U and VT25U alloys and contains predominantly rutile for the VT8 alloys, which is why the fatigue limit of the oxidized alloys differs. © Pleiades Publishing, Ltd. 2024.
UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85194844832
UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=001233421600010
UR - https://elibrary.ru/item.asp?id=67307497
U2 - 10.1134/S0031918X23603141
DO - 10.1134/S0031918X23603141
M3 - Article
VL - 125
SP - 332
EP - 339
JO - Physics of Metals and Metallography
JF - Physics of Metals and Metallography
SN - 0031-918X
IS - 3
ER -
ID: 58174365