Title of article
Fatigue crack propagation of new aluminum lithium alloy bonded with titanium alloy strap
Author/Authors
Sun، نويسنده , , Zhenqi and Huang، نويسنده , , Minghui، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2013
Pages
5
From page
601
To page
605
Abstract
A new type of aluminum lithium alloy (Al–Li alloy) Al–Li–S–4 was investigated by test in this paper. Alloy plate of 400 mm × 140 mm × 6 mm with single edge notch was made into samples bonded with Ti–6Al–4V alloy (Ti alloy) strap by FM 94 film adhesive after the surface was treated. Fatigue crack growth of samples was investigated under cyclic loading with stress ratio (R) of 0.1 and load amplitude constant. The results show that Al–Li alloy plate bonded with Ti alloy strap could retard fatigue crack propagation. Retardation effect is related with width and thickness of strap. Flaws have an observable effect on crack propagation direction.
Keywords
Aluminum lithium alloy , Bonding , Fatigue crack growth , Fatigue life , Stiffness ratio
Journal title
Chinese Journal of Aeronautics
Serial Year
2013
Journal title
Chinese Journal of Aeronautics
Record number
2265284
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