ISNASCT-2 Successfully Held in Shanghai New International Expo Centre
time:2016-11-11 read:1279

WFO Nonferrous Alloys Commission and FICMES held the 2nd International Symposium on Nonferrous Alloys and Special Casting Technologies (ISNASCT-2) on July 8 afternoon and July 9, 2015 in Shanghai New International Expo Center, concurrently with the 10th China International Diecasting Congress and Exhibition. A total of 10 guest presentations and 5 participant presentations were given during the one and a half days, whose topics cover various casting materials such as aluminum alloy, magnesium alloy, titanium alloy and composite materials; and include special casting technologies such as squeeze casting, counter gravity casting, continuous casting, 3D printing technology, as well as numerical simulation and integrated computational materials engineering.
Professor Su Yanqing, chairman of the WFO Nonferrous Alloys Commission, addressed the opening of the meeting. He expressed his warm welcome and appreciation to the participants attending the forum. Then the presentation started. Followings are the key information about the presentations:

Guest presentations:
Professor Chen Yuyong of Harbin Institute of Technology made a report on “Investment casting and hot forming of TiAl alloy”. He introduces the application of γ-TiAl to the fields of aviation, precision casting technology of TiAl, effects of B and C on properties of TiAl alloy, TiAl alloy forging technology and welding properties in his presentation.
Professor Wu Guohua of Shanghai Jiaotong University introduced the application status and development of lightweight magnesium alloy castings in China in his presentation entitled “Research and Application on Lightweight Magnesium Alloy Casting”. He pointed out that adding RE and surface oxidation treatment can improve the performance of magnesium alloys, and the magnesium alloys developed by his team have been used in the lunar rover castings.
Professor Song Changjiang of Shanghai University presented his study results on “Properties of Metallic Engineering Materials Prepared by Sub-Rapid Solidification Structures”. He pointed out that rapid solidification and sub rapid solidification technology can be used in the preparation of a metastable phase of engineering materials, which can obtain similiar mechanical properties with traditional technology (rolling + heat treatment process).
Mr. Hu Hongfa (Henry), Professor at Department of Mechanical, Automotive & Materials Engineering, University of Windsor, gave a presentation on “Casting Squeeze of Aluminum Alloy A380: Tensile and Microstructure Behavior”. He introduced the microstructure and mechanical properties of extruded A380 aluminum alloy, and the properties of squeeze casting and high pressure die casting A380 aluminum alloy were compared. Squeeze casting can eliminate the porosity of A380 aluminum alloy, compared with die casting, the ultimate tensile strength of A380 aluminum alloy is increased by 40%, and the elongation is increased by 440%.
Associate professor Shuei-wan Juang of National Taiwan Ocean University introduced the mechanism of improving the wear resistance of materials in his report “Wear Characteristics of Friction Stir Tools in Processing Aluminum-Fly Ash Composites”. He concluded that adding proper amount of fly ash in the aluminum alloy can improve the wear resistance of the material, and reduce the cost of material preparation.

Participant presentations:

Dr. Zhang Fan, President of the United States CompuTherm Company, introduced the concept of Integrated Computational Materials Engineering (ICME) and the software developed by CompuTherm Company in her presentation entitled “Materials Design by ICME Approach Accelerated”. Ni based alloy and Al alloy were taken as an example, by using of the software, alloy design and microstructure analysis, age hardening and mechanical properties, phase precipitation process calculation and analysis were done. The results were compared with the experimental data.
Associate Professor Liu Yuan of Tsinghua University introduced the development trend of magnetostrictive materials in his report “Fabrication, Magnetostriction and Applications of Tb-Dy-Fe Alloys”. Alloying and heat treatment process of magnetostrictive materials, mechanical performances and resistance to erosion performance were discussed. The application of magnetostrictive in transducer, brake and displacement sensor was also presented.
Professor Wang Tongmin of Dalian University of Technology focuses his research interests on the solidification process of copper alloy under electromagnetic field for many years. He shared his advanced research results in his presentation entitled “Solidification Behavior and Control of Copper Alloy”. He introduced the developing trend of copper alloys. He obtained some results about the effects of electromagnetic field on solidification structure formation process through direct observation of the alloy solidification process with the aid of a synchrotron radiation technique.
In the report of “Solidification of Immiscible Alloys”, researcher Zhao Jiuzhou, Institute of Metal Research, Chinese Academy of Science, introduced the immiscible alloys’ solidification characteristics, existing problems, the solidification characteristics and rapid solidification process of preparation technology for the immiscible alloys. Under conventional solidification conditions, the structure forming process of immiscible alloys and effects of force field, magnetic field, electric field were studied, which displayed the feasibility of the field control immiscible alloys solidification process and the structure.
In addition, Dr. Ji Xiaoyuan of Huazhong University of Science and Technology, lecturer Zhang Yubo of Dalian University of Technology, Dr. Zhang Shouyin of Northwestern Polytechnical University, Dr. LIU Zhiyong of Beijing University of Science and Technology, Zuo Yubo, an associate professor of Northeastern University, Zhao Chengzhi of Harbin Engineering University Professor also made the excellent presentations, of which contents involve the influence of digital management technology, continuous preparation for the composite materials, effect of shell temperature on microstructure and mechanical properties in counter gravity casting, A380 Aluminum alloy semi solid casting, and Cr effect on oxidation behavior of TiAlNb alloy.

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