摘要
介绍了大型纯净超低碳马氏体不锈钢铸件的化学成分、微观组织与力学性能、铸件质量及相关工艺控制等关键制造技术,其成果完全满足三峡电站700 MW大型水轮机不锈钢转轮的技术要求,已成为我国自主研制的700 MW大容量混流式水电机组达到世界先进水平的重要技术支撑。本文还描述了纯净超低碳高屈强比高强韧性铸造马氏体不锈钢新材料的技术特点。未来10年,纯净超低碳马氏体不锈钢铸件及其先进制造技术在国内外核电、水电等清洁能源工业中有巨大的市场需求。高屈强比高强韧性马氏体不锈钢新材料、大型铸件的快捷制造技术和利于环保的可持续发展的新工艺面临新的机遇和挑战。
The key manufacturing technologies associated with composition,microstructure,mechanical properties,casting quality and key process control for large martensitic stainless steel castings are involved in this paper.The achievements fully satisfied the technical requirements for the large 700 MW stainless steel hydraulic turbine runner of the Three Gorges Hydropower Station,and become the major technical support for the design and manufacture of largest 700 MW hydraulic turbine generator unit in the world developed through our own efforts.The characteristics of a new high yield ratio and high obdurability martensitic stainless steel with ultra low carbon and high cleanliness are also described.Over the next ten years,the large martensitic stainless steel castings and advanced manufacturing technologies will see a huge demand in clean energy industry such as nuclear power,hydraulic power at home and abroad.Therefore,the new high strength martensitic stainless steel materials,the fast and flexible manufacturing technologies of large size castings,and new environment friendly sustainable process will face new challenges and opportunities.
出处
《铸造》
CAS
CSCD
北大核心
2010年第11期1148-1154,共7页
Foundry
关键词
大型马氏体不锈钢铸件
纯净超低碳
转轮叶片
large martensitic stainless steel castings
ultra low carbon and high cleanliness
turbine blade
