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Since the 21~(st) century,great attention has been paid to ultra fast cooling(UFC) technology in the whole world.The industries and the research institutions began to carry out investigations on basic theories and industrial applications.Since 2003,the RAL of Northeastern University has made some progresses on microstructure control theories,understanding of strengthening mechanisms and their industrial applications.In this paper,these achievements since the last Baosteel BAC in 2008 will be reported on the industrialization of UFC, strengthening mechanism,development of new steel grades,and so on.
Since the 21st century, great attention has been paid to ultra fast cooling (UFC) technology in the whole world. The industries and the research institutions began to carry out investigations on basic theories and industrial applications. Since 2003, the RAL of Northeastern University has made some progresses on microstructure control theories, understanding of strengthening mechanisms and their industrial applications. In this paper, these achievements since the last Baosteel BAC in 2008 will be reported on the industrialization of UFC, strengthening mechanism, development of new steel grades, and so on.