（School of Materials Science and Engineering, Central South University, Changsha 410083, China）
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DOI:
10.7502/j.issn.1674-3962.2013.01.04
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Abstract:
In order to meet the strict requirements of various components of airplane on the service performance of the aluminum alloys materials which are faced with the fierce substitution competition with composites and other structural materials, scientists and engineers in aluminum alloys need to keep developing new alloys and the processing technology of their materials, try to improve the comprehensive performance and its uniformity, develop the processing principle and technology of large specification products, and material/structural parts integration. This paper briefly introduces the demand of airplane development on the high comprehensive properties and large specification products of hard aluminum alloys, elaborates the development of the aerocraft aluminum alloys from high static strength to high strength, toughness, corrosion and fatigue resistance, and high comprehensive properties, as well as the aerospace structures from riveted jointing and welding to processing of superthickness plates, largesize forgings and integral structural parts; generally explain the correspondent adjustment principle and technology on the relationship among compositions, microstructures and properties of the hard aluminum alloys materials suitable for the airplane development; as well as briefly introduces, analyzes and discusses on some innovative technology keys for processing of the superthickness plates of hard aluminum alloys.