工程科学学报.第44卷.第2期：198-207.2022年2月 Chinese Journal of Engineering,Vol.44,No.2:198-207,February 2022 https://doi.org/10.13374/j.issn2095-9389.2020.12.17.005;http://cje.ustb.edu.cn 高强度耐腐蚀ODS-FeCrAl合金微观结构、力学性能研 究进展 贾皓东，周张健区 北京科技大学材料科学与工程学院，北京100083 ☒通信作者，E-mail:zhouzhj(@mater.ustb.edu.cn 摘要氧化物弥散强化(Oxide dispersion strengthened,.ODS)FeCrAl合金由于加入一定量的Al元素，使合金表面可形成一层 薄而致密的AO,保护膜，使得合金即便在1400℃的水蒸汽下也不会因为腐蚀导致失效.同时，大量超细氧化物粒子的弥散 强化作用使其具备优异的高温强度，这种兼具高温强度和耐腐蚀的特性使得ODS-FeCrAl合金成为非常有前景的事故容错 燃料(Accident tolerant fuel,ATF)包壳候选材料，也是快堆等其他工作于高温强腐蚀环境的先进反应堆包壳的重要候选材料. AI元素的引入会使ODS铁基合金中弥散粒子的种类发生变化，进而影响其显微组织和力学性能.针对ODS-FeCrAl合金中 引人A!元素所导致的显微组织变化及其对蠕变性能的影响，总结了国内外相关研究进展，旨在为适用于先进反应堆的 ODS-FeCrAl合金的发展提供参考 关键词事故容错燃料：氧化物弥散强化合金：显微组织：抗腐蚀性能：蠕变性能 分类号TB333:TG142 Research progress in microstructure and service performance of high-strength and corrosion-resistant ODS-FeCrAl alloy JIA Hao-dong,ZHOU Zhang-jian School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China Corresponding author,E-mail:zhouzhj@mater.ustb.edu.cn ABSTRACT The demand for cleaner and more efficient new generation reactors has become increasingly urgent to solve the world's energy supply and environmental issues such as carbon emissions.The Fukushima nuclear power plant disaster in 2011 prompted researchers to pay more attention to the safety performance of cladding tube materials in nuclear power plants under non-working conditions.Earlier,zirconium alloy,which was widely used in cladding tube materials,would cause serious accidents due to the production of explosive products after failure under the condition of beyond design-basis accident(BDBA).To avoid this problem, researchers proposed the design concept of accident tolerant fuel (ATF).ATF requires the new cladding material to retain a particular strength under the condition of BDBA and does not produce explosive products,thereby avoiding catastrophic accidents.Oxide dispersion strengthened(ODS)-FeCrAl alloy has good high-temperature strength due to its dispersion strengthening.After treatment,the presence of Al forms a thin and dense Al2O protective film on the surface of the alloy.This layer of Al2O3 protects the alloy,ensuring that it does not fail due to corrosion even when exposed to 1400C steam.This combination of high-temperature strength and corrosion resistance makes ODS-FeCrAl alloy a promising candidate for advanced reactor cladding materials like ATF.Although the introduction of aluminum improves the corrosion resistance of the alloy,it also changes the type of dispersed particles in the ODS alloy.The size of 收稿日期：2020-12-17 基金项目：国家自然科学基金资助项目(U1967212):国家重点研发计划资助项目(2018YFE0116200)高强度耐腐蚀 ODS−FeCrAl 合金微观结构、力学性能研 究进展 贾皓东，周张健苣 北京科技大学材料科学与工程学院，北京 100083 苣通信作者， E-mail: zhouzhj@mater.ustb.edu.cn 摘    要    氧化物弥散强化（Oxide dispersion strengthened，ODS）FeCrAl 合金由于加入一定量的 Al 元素，使合金表面可形成一层 薄而致密的 Al2O3 保护膜，使得合金即便在 1400 ℃ 的水蒸汽下也不会因为腐蚀导致失效. 同时，大量超细氧化物粒子的弥散 强化作用使其具备优异的高温强度. 这种兼具高温强度和耐腐蚀的特性使得 ODS−FeCrAl 合金成为非常有前景的事故容错 燃料（Accident tolerant fuel , ATF）包壳候选材料，也是快堆等其他工作于高温强腐蚀环境的先进反应堆包壳的重要候选材料. Al 元素的引入会使 ODS 铁基合金中弥散粒子的种类发生变化，进而影响其显微组织和力学性能. 针对 ODS−FeCrAl 合金中 引入 Al 元素所导致的显微组织变化及其对蠕变性能的影响，总结了国内外相关研究进展，旨在为适用于先进反应堆的 ODS−FeCrAl 合金的发展提供参考. 关键词    事故容错燃料；氧化物弥散强化合金；显微组织；抗腐蚀性能；蠕变性能 分类号    TB333;TG142 Research progress in microstructure and service performance of high-strength and corrosion-resistant ODS−FeCrAl alloy JIA Hao-dong，ZHOU Zhang-jian苣 School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China 苣 Corresponding author, E-mail: zhouzhj@mater.ustb.edu.cn ABSTRACT    The demand for cleaner and more efficient new generation reactors has become increasingly urgent to solve the world’s energy supply and environmental issues such as carbon emissions. The Fukushima nuclear power plant disaster in 2011 prompted researchers to pay more attention to the safety performance of cladding tube materials in nuclear power plants under non-working conditions. Earlier, zirconium alloy, which was widely used in cladding tube materials, would cause serious accidents due to the production of explosive products after failure under the condition of beyond design-basis accident (BDBA). To avoid this problem, researchers proposed the design concept of accident tolerant fuel (ATF). ATF requires the new cladding material to retain a particular strength under the condition of BDBA and does not produce explosive products, thereby avoiding catastrophic accidents. Oxide dispersion strengthened (ODS)−FeCrAl alloy has good high-temperature strength due to its dispersion strengthening. After treatment, the presence of Al forms a thin and dense Al2O3 protective film on the surface of the alloy. This layer of Al2O3 protects the alloy, ensuring that it does not fail due to corrosion even when exposed to 1400 °C steam. This combination of high-temperature strength and corrosion resistance makes ODS−FeCrAl alloy a promising candidate for advanced reactor cladding materials like ATF. Although the introduction of aluminum improves the corrosion resistance of the alloy, it also changes the type of dispersed particles in the ODS alloy. The size of 收稿日期: 2020−12−17 基金项目: 国家自然科学基金资助项目（U1967212）；国家重点研发计划资助项目（2018YFE0116200） 工程科学学报，第 44 卷，第 2 期：198−207，2022 年 2 月 Chinese Journal of Engineering, Vol. 44, No. 2: 198−207, February 2022 https://doi.org/10.13374/j.issn2095-9389.2020.12.17.005; http://cje.ustb.edu.cn