被引排行
Research and Application of Typical Aerospace Titanium Alloys
Fu Yanyan,Song Yueqing~*,Hui Songxiao,Mi Xujun(State Key Laboratory for Fabrication &(Processing) of Non-Ferrous Metals,General Research Institute for Non-Ferrous Metals,Beijing 100088,China)Because of their excellent high specific strength and corrosion resistance,titanium alloys are widely used in aerospace industry.The present development on the investigation of aerospace titanium alloys with high strength(Ti-1023, Ti-15-3,β-21S,BT22,TB10),high temperature Ti-6242S,Ti-1100,IMI834,BT36,Ti-60),burn resistance(Alloy C,BTT-1,BTT-3,Ti-40)and damage tolerance(Ti-6Al-4VELI,Ti-6-22-22S,TC21) were introduced.Meanwhile,the characteristics of components,structures,properties of typical aerospace titanium alloys were analyzed and the author′s opinions about development trend in this field were also presented.
Application and Development of New Titanium Alloys for Aerospace
Qian Jiuhong (Research Institute of Science and Technology Information, General Research Institute for Nonferrous Metals, Beijing 100088, China)In four fields of Betatitanium alloys with high strength and toughness (Ti1023, Ti153, β21S, SP700 and BT22), hightemperature titanium alloys (IMI829, IMI834, Ti1100, BT18Y, BT36), titanium aluminide (Ti_3Al(α2) and TiAl(γ)) and fireresistant titanium alloys (Alloy C, BTT1 and BTT3), the new development of titanium alloys for aerospace were introduced briefly.
Research Status and Development Trend of Ultra-High Strength Aluminum Alloys
Wang Tao 1, Yin Zhimin2 (1. Northeast Light Alloy Co. Ltd, Harbin 150060, China; 2. Central South University, Changsha 410083, China)The development history of ultra-high strength aluminum alloys was summarized. The strengthening mechanism and the research status were also discussed. The effect of heat treatment on the microstructure and properties was compared. In the last, the author discussed the development direction and goal of ultra-high strength aluminum alloys. From the development history it can be found that the development road of ultra-high strength aluminum alloy is: high strength and low toughness→high strength and high toughness→high strength, high toughness and high corrosion resistance. The development road of the relative heat treatment is: T6→T73→T76→T736(T74)→T77. The alloying degree of ultra-high strength aluminum alloys is more and more high while the content of Fe and Si elements is more and more few. Improving the composition and the fabrication process and developing new heat treatment process are the important development direction and method of ultra-high strength aluminum alloy.
Magnesium Alloy and Its Applications in Industry
Zi Bingtao 1* , Wang Hui 2 (1. Institute of Metal Materials Research, 2. Institute of Mining Resource Research, Beijing General Research Institute of Mining & Metallurgy, Beijing 100044, China)Mg is a profuse element in the earth. Mg and its alloy are of many good characters such as light weight, high specific strength and good specific rigidity, good oscillation damping, better mechanical processing property and better polishing property, innocuous, nonmagnetic, good heat exchange, good recycle, etc., and are widely used in such industries as automobile, computer, mobile telephone, precision instrument, national defence, aeronautic and astronautic, etc. Characters and its applications of Mg and its alloy was introduced in detail.
State of Art for Study and Application of Supercapacitor
Zhu Lei , Wu Borong, Chen Hui, Liu Mingyi, Jian Xuyu, Li Zhiqiang (Research Center of Energy Materials and Technology, Beijing General Research Institute for Non Ferrous Metals, Beijing 100088, China)The supercapacitor is a new type of energy-storage device with excellent performance of high power density, long cycle life, quick charging and wide using temperature, which has been widely developed these days. The principle and classification of supercapacitor were described, together with its development, commercialization and application. Making a comprehensive view, with the development of the electric vehicle, supercapacitor will be used together with the battery to provide high power for acceleration, braking or climbing of the electric vehicle, which will be helpful for reducing the volume and lengthening the life of the battery. With the appearance of nano carbon materials, the study of supercapacitor will be promoted greatly, and the performance of supercapacitor will be greatly improved.
Overview of Research and Manufacture of Layer-Metal Composite Plate
Ma Zhixin, Hu Jie, Li Defu , Li Yanli (Engineering Research Center for Non Ferrous Metal Process , Beijing General Research Institute for Non Ferrous Metals, Beijing 100088, China)The observation on the research and manufacture of layer metal composite plate were introduced.The explosive welding,roll cladding and explosive welding+rolling are three main processes currently in the manufacture of the layer-metal composite plate. The application of the explosive welding is the most extensive one, and the asymmetrical rolling is a new cladding method with huge potential, and the explosive welding+rolling has great advantages in the manufacture of the thin composite plate or strip.
Effect and Application of Rare Earth Element in Magnesium Alloys
Zhang Jinghuai1,2,Tang Dingxiang1,Zhang Hongjie1,Wang Limin1,Wang Jun1,Meng Jian1 (1. State Key Laboratory of Rare Earth Resources Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China; 2. Graduate School of the Chinese Academy of Sciences,Beijing 100049,China)Rare earth element played key role and validity in magnesium alloy were summarized. The behaviors of rare earth element in magnesium alloy were reviewed based on physic-chemistry of metallurgical process. The properties and application of a series of important RE-containing magnesium alloys,i.e.,Mg-Zn-RE,Mg-Al-RE and Mg-RE alloys,were introduced in the company with the achievement of RE-Mg alloy in Changchun Institute of Applied Chemistry.It was emphasized that the RE-containing magnesium alloys exhibited the excellent comprehensive properties,especially,in high strength/toughness,heat/creep resistance and corrosion-resistance. RE Mg alloy should be one of the important direction in the field of development of advanced magnesium alloy.
Development Status and Research Progress in Rare Earth Industry in China
Huang Xiaowei1,2*,Li Hongwei2,Wang Caifeng3,Wang Guozhen4,Xue Xiangxin1,Zhang Guocheng2 (1.Institute of Metallurgical Resources & Environmental Engineering,Northeastern University,Shenyang 110004,China;2.National Engineering Center for Rare Earth Materials,General Research Institute for Non-Ferrous Metals,Beijing 100088,China;3.Rare Earth Office,National Development and Reform Commission,Beijing 100824,China;4.China Nonferrous Engineering and Research Institute, Beijing 100038,China)The reserve and exploitation status of RE resources,the development of RE metallurgy and RE functional materials industry,the RE application,the RE market,the RE import and export profile and technological progress in China were introduced.Expecially,advanced metallurgy processes and techniques for Baotou mixed-type RE concentrate,bastnasite,and ionic adsorption deposit and R & D circumstance were reviewed.Moreover,the development trend of RE industry was predicted and the existing problems of RE industry were put forward.Further more,the direction and emphases fields of research and development were also brought forward.
Application of Titanium Alloy in Airplane
Li Chonghe1*,Zhu Ming1,2,Wang Ning1,3,Lu Xionggang1,Cheng Shentao1(1.College of Materials Science and Engineering,Shanghai University,Shanghai 200072,China;2.General Research Institute for Non Ferrous Metals,Beijing 100088,China;3.Special Steel Branch,Baoshan Iron & Steel Co.,Ltd.,Shanghai 200940,China)Titanium and titanium alloys are excellent candidates for aerospace applications due to their high strength to weight ratio and excellent corrosion resistance.The development history and status of the application of titanium alloy in aviation are reviewed.Several typical titanium alloys are introduced(α Alloys,β Alloys and α+β Alloys),and titanium alloys used for fuselage and engine are observed.Their future and prospect are also discussed.
Thermodynamic Modeling Software FactSage and Its Application
Cao Zhanmin1, Song Xiaoyan2, Qiao Zhiyu1 (1. School of Metallurgical and Ecological Engineering, University of Science & Technology Beijing, Beijing 100083, China; 2. School of Materials, Beijing University of Technology/Key Laboratory of New Functional Materials, Chinese Ministry of Education, Beijing 100022, China)The thermodynamic softwares Uhermo-Calc and FactSage were briefly introduced. Thermodynamic modeling nickel flash smelting process of Jinchun by FactSage indicated that the theoretically calculated value of Cu content in the slag (0.043%～0.060%) was much lower than the content (0.28%～0.30%) in the practical case. From thermodynamic point of view, the further decreasing Cu content in the flash smelting slag should be possible. Under given conditions composition and content of phases and their developing features were calculated by FactSage for a series of Fe-B alloys with different compositions. Considering the processing, mechanical and liquid Zn-corrosion resistance properties of the alloys, the Fe-7.01%B, Fe-5.05%B and Fe-3.31%B alloys, which contain the α-Fe and Fe2B phases, could well fulfill the comprehensive requirements as a liquid Zn-corrosion resistance material.