Research content: In the research of metal materials, the microstructure and microstructure changes of several typical metal materials during plastic deformation and annealing were systematically and quantitatively studied by using advanced microcrystalline structure and orientation determination technology. Focusing on increasing the rate and decreasing the temperature, the superplastic deformation behavior of materials is systematically studied, and a new mechanism of deformation promoting continuous recrystallization and a new concept of subgrain superplasticity are put forward.
Scientific research project: Chief scientist of "973" project "Key Basic Problems of Preparation and Processing of High Performance Magnesium Alloy Materials" (2007-2011); The national security major basic research (Military Industry 973) project is entitled "Microstructure evolution law and mechanical behavior in preparation and processing of XXX alloy" (2007-2010).
academic achievement
More than 30 papers were published 100, including more than SCI papers100, which were cited by others 1200 times. With regard to HTS materials, since May 2000, as one of the main leaders, Tsinghua University Applied Superconducting Research Center has been established, and 500m Bi HTS wires with international advanced properties have been successfully developed, which has become the latest major scientific and technological achievement in the 90th anniversary of Tsinghua University.
Won the first prize of Beijing Science and Technology (ranked second); The construction of HTS wire production line and the interconnection of HTS cable were awarded "Top Ten Science and Technology News of China" in 20001and 2004 respectively. The first prize of Beijing Science and Technology in 2004 (ranked second); The project "Research and Development of High Performance Bi Series High Temperature Superconducting Long Strip" won the second prize of National Science and Technology Progress Award in 2006 (ranked second).