锆合金耐腐蚀性优化研究进展  

Research Progress on Corrosion Resistance Optimization of Zirconium Alloy

作　　者：庄文华 魏超 袁新璐 贺继樊 ZHUANG Wenhua;WEI Chao;YUAN Xinlu;HE Jifan(School of Mechanical Engineering,Chengdu University,Chengdu 610106,China;School of Materials Science and Engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]成都大学机械工程学院,四川成都610106 [2]西南交通大学材料科学与工程学院,四川成都610031

出　　处：《机械》2025年第4期1-10,共10页Machinery

基　　金：国家自然科学基金青年基金项目(52305215)。

摘　　要：锆合金因其优异的核性能在核反应堆中广泛应用,为实现“高燃耗、长循环”的目标,需要改善其抗腐蚀能力。目前对锆合金抗腐蚀性的研究主要集中在三个方面:合金元素调控、水化学条件的控制以及加工工艺优化。通过合金化可提高锆合金的环境适应能力。试验研究证明,在锆合金中添加Nb元素或Ta元素,或提高Fe含量和降低Sn含量,有助于提高其耐腐蚀性。接着总结了锆合金腐蚀行为的研究方法和研究现状。加工工艺和热处理参数会直接影响锆合金中第二相粒子的组成、成分和分布,继而影响锆合金的腐蚀性能。研究表明,在锆合金加工过程中维持Nb的平衡浓度、降低β-Zr的存在、增加Nb的第二相含量,可提高含Nb锆合金的耐腐蚀性。最后总结了改善锆合金腐蚀性能的方法,并分析了关于锆合金腐蚀研究中存在的问题,为锆合金耐腐蚀性研究和新型锆合金的开发提供参考。Zirconium alloys are widely used in nuclear reactors for excellent nuclear properties.To achieve the goal of“high burn-up,long cycle”,it is essential to improve the corrosion resistance of zirconium alloys.At present,the research on the corrosion resistance of zirconium alloy mainly focuses on three aspects:the regulation of alloying elements,the control of hydrochemical conditions and the optimization of processing technology.The environmental adaptability of zirconium alloys can be improved by alloying,and the experimental studies have proved that adding Nb or Ta element,increasing Fe content and decreasing Sn content can help to improve the corrosion resistance.Next,the methods and current status of research on the corrosion behavior of zirconium alloys are then summarized.The processing and heat treatment parameters have a direct impact on the composition,content and distribution of the second phase particles in zirconium alloys,which in turn affect the corrosion performance of zirconium alloys.It is shown that maintaining the balanced concentration of Nb,decreasing the presence ofβ-Zr and increasing the second phase content of Nb during zirconium alloy processing can improve the corrosion resistance of zirconium alloys containing Nb.Finally,methods for improving corrosion performance are summarized,and the challenges in existing research are analyzed,with the aim of providing references for corrosion resistance studies of zirconium alloys and the development of new zirconium alloys.

关 键 词：锆合金 腐蚀 核反应堆 合金化 组织结构 热处理 

分 类 号：TG172.82[金属学及工艺—金属表面处理]