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The history of GLARE laminate was introduced. Through comparison with conventional aluminum alloy sheets, the excellent performance of GLARE as a new generation aeronautic material is discussed. The properties and application of GLARE in large civil aircraft indicates that new composite materials such as GLARE will replace bulk aluminum alloy in future aircraft structure. With the continuous development of material technologies, a trend of developing high strength and low cost composite materials will lead aviation industry to a new stage.

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Since the Turkish Prime Minister Ozal had put forward the basic concept of BOT project in the 1980s. It has become the construction mode favored by governments of most countries, especially in developing country. The BOT mode is mainly applicable to some complex large-scale infrastructure construction projects. In China, with the continuous improvement of economic capacity, the government pays more attention to the construction of infrastructure. But owing to this kind of project’s feature, it will bring a great financial pressure to the Chinese government. So, the BOT mode is the best choice for the government. But as the BOT mode itself involved in multilateral cooperation, even include the foreign partner, and combined with the particularity of the project itself. It has the types of risk is more than conventional projects. Therefore, risk management and control of it is what we need to research and focus on. This paper takes Istanbul Yavuz Sultan Selim (hereinafter referred to as YSS Bridge) Bridge project as an example. The paper based on the basic theory of BOT project and risk management theory, analyzes the whole process of risk management in international BOT mode project, and then analyzes how to take measures to prevent possible risk events in the case of cross-border cooperation.

As one of the important metallic product used in civil aviation industry, aluminum alloy casting is well discussed. Compared with wrought products, the advantages of aluminum alloy casting enable the structure design of aircraft much more efficient on the weight and cost saving, while its disadvantages restrain the application from spreading into conditions that high strength is required. However, with the development of casting as well as the new metallic forming technics, there must more options of materials for the future aircraft structure manufacturing