锆合金疖状腐蚀研究进展  

Research Progress of Nodular Corrosion of Zirconium Alloy

作　　者：王言眸 张聪惠[1] 朱文光 曾祥康 Wang Yanmou;Zhang Conghui;Zhu Wenguang;Zeng Xiangkang(Xi’an University of Architecture and Technology,Xi’an 710055,China)

机构地区：[1]西安建筑科技大学,陕西西安710055

出　　处：《钛工业进展》2022年第2期42-48,共7页Titanium Industry Progress

摘　　要：简要综述了近年来国内外关于锆合金疖状腐蚀的研究进展,归纳总结了锆合金的疖状腐蚀机理,主要包括氢聚集腐蚀、局部溶质贫化腐蚀、形核长大腐蚀、疖状斑形成腐蚀等。分析了影响锆合金耐疖状腐蚀的因素,并在此基础上提出了改善锆合金耐疖状腐蚀性能的方法,主要有:调节合金元素种类及含量;表面晶粒细化处理;进行适当的热处理,使第二相尺寸细化,分布均匀。The research progress of zirconium alloy nodular corrosion at home and abroad in recent years was reviewed in this paper.Nodular corrosion mechanisms of zirconium alloy were summarized,including hydrogen aggregation corrosion,local solute depletion corrosion,nucleation and growth corrosion,nodular corrosion spots form and so on.The factors affecting the nodular corrosion resistance of zirconium alloy were analyzed.Based on this,the methods to improve nodular corrosion resistance of zirconium alloy were put forward:adjusting alloy elements type and content;surface grain refinement treatment;fining size and distributing evenly of the second phase by proper heat treatment.

关 键 词：锆合金 疖状腐蚀 腐蚀机理 第二相粒子 

分 类 号：TG146.414[一般工业技术—材料科学与工程]