铸造技术2025，Vol.46Issue(5)：464-470,7.DOI:10.16410/j.issn1000-8365.2025.5002
低氧环境下FeNiCrAl多主元合金动态铅铋腐蚀行为
Dynamic Lead-bismuth Corrosion Behavior of FeNiCrAl Multi-Principal Component Alloy in a Low-oxygen Environment
摘要
Abstract
As the recommended reactor type for fourth-generation nuclear reactors,lead-cooled fast reactors have made remarkable progress.However,lead-bismuth corrosion-resistant structural materials have always been an important factor restricting their development.Previous studies have shown that Fe37Ni36Cr10Al17 multiprinciple component alloys have good static lead-bismuth compatibility.Therefore,with the Fe37Ni36Cr10Al17 alloy as the object,the dynamic corrosion behavior of a 550 ℃ liquid lead-bismuth eutectic with an oxygen content of 10-7 wt.％and a flow rate of 2 m/s was explored,providing a research basis for the application of new Al-containing metallic materials in lead-cooled fast reactors.These results indicate that Al plays a decisive role in the oxide layer.When the alloy indicates the formation of an Al-rich oxide layer,the alloy can be well protected;when the Al content in the oxide layer is low or unevenly distributed,the Fe37Ni36Cr10Al17 alloy undergoes significant dissolution corrosion.Dissolution corrosion mainly occurs in the FCC phase,causing a significant loss of Ni,a decrease in stability,and the precipitation of the dispersed B2 phase.Compared with traditional commercial stainless steel,the Fe37Ni36Cr10Al17 alloy has a shallower dissolution corrosion depth and significant application advantages.关键词
铅冷快堆/铅铋合金/动态腐蚀/FeNiCrAl多主元合金Key words
lead-cooled fast reactor/lead-bismuth eutectic alloy/dynamic corrosion/FeNiCrAl multiprinciple component alloy分类
金属材料引用本文复制引用
王健斌,赵可,王志军,刘小明,黄赟浩,李俊杰,王锦程..低氧环境下FeNiCrAl多主元合金动态铅铋腐蚀行为[J].铸造技术,2025,46(5):464-470,7.基金项目
国家自然科学基金(52001299) （52001299）
中核集团基础科研项目(NPIC-z3012023004) （NPIC-z3012023004）
中核集团青年英才(NPIC-k301007038) （NPIC-k301007038）
