本刊高级顾问清华大学材料系方鸿生教授,因突患疾病抢救无效于2010年6月9日去世,享年78岁。方鸿生教授是国际上两大类空冷贝氏体钢之一———锰系贝氏体钢的发明人和代表人物,也是国际上贝氏体相变扩散学说的重要代表人之一。他的研究及开发工作已经在我国的钢铁、机械、交通运 Our Senior Consultant Professor Fang Hongsheng Department of Materials Science and Engineering, Tsinghua University, due to sudden illness and disease rescue invalid on June 9, 2010 died at the age of 78 years. Professor Fang Hongsheng is one of the two major categories of air-cooled bainitic steels in the world --- the inventor and representative of manganese-based bainite steel and one of the important representatives of the international bainite transformation-diffusion theory. His research and development work has been in China’s steel, machinery, transportation