摘要
At the end of June 2016, the research project of Cast Superalloy Preparation Technology and Application led by Shougang Group passed the expert panel examination organized by the High Technology Research and Development Center, Ministry of Science and Technology of P. R. China. The project is one of the key programs of the National High-Tech Research and Development Program (863) of China in the course of the "12th Five-Year Plan", concerning the major technologies of high quality special steels. In the past three and a half years,