630~650℃超超临界参数锅炉受热面管备选材料建议  

Suggestion on alternative heated surface tube materials for 630-650℃ultra-supercritical units

作　　者：刘巍栋 蔡文河 赵勇 孙越 原永亮 LIU Weidong;CAI Wenhe;ZHAO Yong;SUN Yue;YUAN Yongliang(Datang Northeast Electric Power Test and Research Institute,Changchun 130102,Jilin,China;China Datang Corporation Science and Technology Research Institute Thermal Power Technology Research Institute,Beijing 100040,China)

机构地区：[1]大唐东北电力试验研究院有限公司,吉林长春130102 [2]中国大唐集团科学技术研究院有限公司火力发电技术研究院,北京100040

出　　处：《钢铁研究学报》2021年第9期891-900,共10页Journal of Iron and Steel Research

摘　　要：基于630℃二次再热机组受热面管候选新材料Sanicro25、C-HRA-5、SP2215进行了综合性能分析研究,包括化学成分、微观组织、力学性能、高温时效后的冲击性能、抗蒸汽氧化性、耐腐蚀性和经济性等,并与目前应用于600~620℃机组的传统Super304H和HR3C钢进行比对,结果表明3种新型材料综合性能更为优异,可作为630~650℃机组受热面材料使用。Based on the new heated surface tube materials for servicing 630℃double-reheat power generation units,the comprehensive property of three alternatives,Sanicro25,C-HRA-5 and SP2215,was researched.The properties included chemical composition,microstructure,mechanical properties,impact property after aging at high temperature,steam oxidation resistance,corrosion resistance and economy.Compared with traditional steels,Super304 H and HR3 C,those are currently used for 600-620℃units,the comprehensive property of these new materials are superior.They can be used as the heated surface tube materials for 630-650℃units.

关 键 词：Sanicro25 C-HRA-5 SP2215 二次再热 性能 对比分析 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG142.25[金属学及工艺—金属材料]