中国超超临界电站锅炉关键材料用钢及合金的研究现状

 综述了近几年国内用于超超临界火电机组锅炉的马氏体耐热钢、奥氏体耐热钢、镍基耐热合金的研究情况。国内学者们对马氏体和奥氏体耐热钢高温强化机理和生产工艺进行了系统研究，并实现了马氏体/铁素体耐热钢T/P91、T/P92与奥氏体耐热钢S31042、S30432、TP347HFG的国产化，对新型9%Cr马氏体耐热钢展开了研究。对镍基合金的投入和研究还不够，研究内容不够系统，但表现出较好的势头，学者们正对Inconel 740、Alloy 617及其改型合金和Alloy 263合金进行较广泛的研究。对用于超超临界火电机组关键材料的研究提出了建议，展望了国内耐热钢及合金的研究趋势。

Study of steel and alloys for ultra-supercritical power plant in China

The present research in China of martensitic heat- resistant steel，austenitic heat- resistant steel and nickel base heat- resistant alloy used for boiler and ultra- supercritical thermal power unit was summarized. Compared with nickel base heat- resistant alloy，the research for martensitic and austenite heat resistant steels is relatively sufficient. The nationalization of martensitic heat- resistant T/P91，T/P92 steel and austenitic heat resistant steel S31042，S30432 and TP347HFG has been realized. Studies on the new 9%Cr martensitic steel were carried out. The investment and research for nickel base alloys is not enough and the research content is far from systematic，but the trend of study on nickel base alloys shows good momentum. Relatively comprehensive studies on Inconel 740，Alloy 617 and Alloy 263 have being researched by domestic scholars. Some recommendations were put forward for the research of key materials for ultra- supercritical thermal power units. Better future in China of research for heat resistant steels and alloys was prospected.