冷喷涂B_(4)C/Al复合涂层在硼酸溶液中的腐蚀行为  

Corrosion Behavior of Cold-sprayed B_(4)C/Al Composite Coating in Boric Acid Solution

作　　者：赵立佳 崔新宇[1] 王吉强[1] 熊天英[1] ZHAO Lijia;CUI Xinyu;WANG Jiqiang;XIONG Tianying(Shi-changxu Innovation Center for Advanced Materials,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China;School of Materials Science and Engineering,University of Science and Technology of China,Shenyang 110016,China)

机构地区：[1]中国科学院金属研究所师昌绪先进材料创新中心,沈阳110016 [2]中国科学技术大学材料科学与工程学院,沈阳110016

出　　处：《中国腐蚀与防护学报》2025年第1期164-172,共9页Journal of Chinese Society For Corrosion and Protection

基　　金：中国科学院青年创新促进会项目(2023199)。

摘　　要：采用浸泡和电化学实验,研究了冷喷涂B_(4)C/Al复合涂层在硼酸溶液中的腐蚀行为。结果表明,冷喷涂涂层内颗粒间界面的结合弱,硼酸溶液倾向于沿着颗粒间的界面优先发生腐蚀,进而腐蚀涂层内部。后热处理可以有效改善冷喷涂B_(4)C/Al涂层的组织,增强颗粒间的界面结合,进而提升其在硼酸溶液中的耐腐蚀性能。Due to the excellent neutron absorption properties,cold-sprayed B_(4)C/Al composite coating shows a good application prospect in the field of spent fuel storage.However,there are few studies on the corrosion behavior of cold-sprayed B_(4)C/Al coating in boric acid solution.In this paper,the corrosion behavior of cold-sprayed B_(4)C/Al coating coated 316L stainless steel in boric acid solution was studied by immersion test,electr℃hemical workstation,and EIS as well as SEM+EDS and XRD.Results show that the interface between B_(4)C particles in the cold-sprayed coating is weak,and the boric acid solution tend to preferentially corrode along the interparticle interface,thus results in the corrosion of the coating matrix.Post heat treatment can effectively improve the structure of cold sprayed B_(4)C/Al coating and enhanced interfacial bonding between particles.As a result,the corrosion resistance of B_(4)C/Al coating in boric acid solution was improved.

关 键 词：冷喷涂 B_(4)C/Al 耐腐蚀性能 热处理 

分 类 号：TG174[金属学及工艺—金属表面处理]