锅炉用铁素体耐热钢研究与应用进展  

Research and Application Progress of Ferritic Heat-resistant Steels for Boilers

作　　者：田根起 崔正强 史宸伊 毛博[2] 赵双群 付立铭[2] 王延峰 单爱党[2] TIAN Genqi;CUI Zhengqiang;SHI Chenyi;MAO Bo;ZHAO Shuangqun;FU Liming;WANG Yanfeng;SHAN Aidang(Shanghai Power Equipment Research Institute Co.,Ltd.,Shanghai 200240,China;School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海发电设备成套设计研究院有限责任公司,上海200240 [2]上海交通大学材料科学与工程学院,上海200240

出　　处：《动力工程学报》2025年第3期334-346,共13页Journal of Chinese Society of Power Engineering

摘　　要：对锅炉用2%~12%Cr铁素体耐热钢的发展历程、强化机制和服役过程中组织性能退化规律进行了梳理,并对国内外开发的5种新型9%~12%Cr铁素体耐热钢以及加工工艺进行了总结。结合工程应用,详细介绍了美国、日本和欧洲对9%~12%Cr铁素体耐热钢蠕变强度和许用应力下调情况,并就低硬度P91钢、焊接接头IV型裂纹开裂和氧化腐蚀等问题进行了讨论。建议深入研究C、N、B和稀土元素对耐热钢组织性能的影响,同时对机组深度调峰和长时服役后铁素体耐热钢的性能退化和损伤机制进行分析,为机组运行、设备安全性评价和新材料开发提供支撑。The development history,strengthening mechanisms,and the degradation laws of microstructural properties during service of 2%-12%Cr ferritic heat-resistant steels for boilers were reviewed.A summary was provided on five newly developed 9%-12%Cr ferritic heat-resistant steels at home and abroad,as well as their processing techniques.Combined with engineering applications,a detailed introduction was given to the reduction adjustment in creep strength and allowable stress for 9%-12%Cr ferritic heat-resistant steels in the United States,Japan,and Europe.Discussions were conducted on issues such as the low hardness of P91 steel,type IV cracking in welded joints,and oxidation corrosion.It is suggested that in-depth research should be carried out on the effects of C,N,B,and rare earth elements on the microstructural properties of heat-resistant steels.Additionally,an analysis should be conducted on the performance degradation and damage mechanism of ferritic heat-resistant steels after deep peak shaving of the unit and long-term service,providing support for unit operation,equipment safety evaluation,and the development of new materials.

关 键 词：9%~12%Cr耐热钢 强化机制 组织性能演变 许用应力 

分 类 号：TG113[金属学及工艺—物理冶金]