被引排行
Commercial aircraft program promotes advanced material development
WU Guanghui;Materials are the substance basis of aircraft manufacturing. Materials, to some extent, determine the cost of aircraft structure manufacture. Materials are essential to achieve market success for commercial aircraft. Application of advanced materials is one of the most important impetus to the development and progress of aerospace technology. With almost ten years exploring of civil aircraft in China, the scientific aerospace material evaluation system was built and the material application roadmap to civil aircraft was schemed. The international competitiveness of material performance, production equipment and industrialization level will be definitely improved significantly with demand orientation and industry driving of large civil aircraft.
Several thoughts on accelerating the development of magnesium industry in China
SONG Jiangfeng;PAN Fusheng;Advanced materials are one of the key areas of international competition,and also the key factor of national industrial competitiveness and national defense security. Due to the shortage of strategic mineral resources such as iron,copper,aluminum,nickel,cobalt and lithium in China,it is urgent to accelerate the development of advanced metal materials with China's strategic resource advantages.As extremely potential lightweight materials and energy storage materials,magnesium and magnesium alloy materials have the characteristics of rich resources,good mechanical properties,excellent functional properties,and environmental friendliness. Their industrial development and wider promotion and application are particularly important for energy conservation and emission reduction,energy transformation,and general health. China has significant advantages of resources and technologies. It is therefore urgent to accelerate the development of magnesium industry in China under the background of“dual carbon”.
A critical review of the state-of-the-art of ultra-high strength 7XXX aluminum alloys
ZHANG Wangjun;LI Yun;WU Yuna;JIANG Jinghua;MA Aibin;In this review, the current status and future developing trend of 7XXX series aluminum alloys are summarized from three aspects: alloying, thermo-mechanical treatment and controllable heterogeneous structures emerged in recent years. The influence of alloying and thermo-mechanical treatment(including large plastic deformation) on the mechanical properties of 7XXX series aluminum alloys is also discussed. The new concept and types of heterostructures and their influence on the mechanical properties of 7XXX series aluminum alloys are introduced. Moreover, the developing trend of ultra-high strength 7XXX series aluminum alloys is highlighted. New insights are provided for the sustainable development of the ultra-high-strength 7XXX series aluminum alloy industry.
Application of composite materials in large aircrafts
CHEN Yong;WU Guanghui;ZHONG Kelin;WANG Shihao;COMAC Shanghai Aircraft Design and Research Institute;Composite materials are widely used in large aircrafts at home and abroad, and the application of advanced composite materials is inseparable from the development of commercial aircrafts.While promoting the development and upgrading of commercial aircrafts, composite materials technology and manufacturing equipment are also constantly updating. Chinese large aircrafts started late such that the application of composite materials is basically catching up with the international trend. With the rapid development of composite materials, however, commercial large aircrafts have accelerated the application process of key components, and continue to gain innovation in the development.