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- W4207082144 abstract "The effect of artificial aging modes on the structure, mechanical properties and crack resistance of sheets made from high-strength aluminum-lithium alloy V-1469 was studied. Kinetic curves of mechanical properties changes during artificial aging at various temperatures and long exposures were plotted. To establish the possibility of crack resistance increase the one-stage and multi-stage modes of artificial aging were selected for the study. As a result it was selected a mode that makes it possible to increase the crack resistance with a small decrease in strength, high corrosion resistance and fatigue life. Comparison of the structural-phase state and the complex of sheets properties processed by the selected mode with sheets processed by the mode providing maximum strength is made. The crack resistance, determined on large (750 mm wide) specimens from V-1469T1 alloy sheets processed according to the selected mode of aging, are at the level of sheets made from 1163AT type alloy. In opposite to high-strength aluminum alloy, when strength and crack resistance achieved by over-aging, the same properties in aluminum-lithium alloy V-1469 can be achieved by aging with short exposures." @default.
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- W4207082144 date "2021-01-01" @default.
- W4207082144 modified "2023-09-27" @default.
- W4207082144 title "Influence of artificial ageing on the crack resistance of sheets from high-strength aluminium-lithium alloy V-1469" @default.
- W4207082144 doi "https://doi.org/10.30791/1028-978x-2021-12-30-39" @default.
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