Damage tolerance and durability evaluation of aluminium-lithium alloys
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Abstract
New impetus to continued use of alximinium alloys in major structural areas of aircraft has been given by the development of aluminium-lithium alloys. However, qualification of these new materials for service requires extensive testing and evaluation, preferably in international cooperative programmes. The evaluation of aluminium-lithium alloys is discussed with particular attention to the balance of properties required to achieve damage tolerant and durable, long-life structures for transport aircraft. An assessment of the current developmental maturity of damage tolerant aluminium-lithium alloys is given.
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