典型“铝-钛-铝”三层结构复合耳片腐蚀防护性能研究  

Study on Corrosion Protection Performance of Typical“Aluminum-TitaniumAluminum”Three-Layer Structure Composite Lugs

作　　者：郭祥 赵伟 赵连红 冯成慧 刘元海 GUO Xiang;ZHAO Wei;ZHAO Lian-hong;FENG Cheng-hui;LIU Yuan-hai(The First Aircraft Institute,Xian 448035;Stmcture Corrosion Protection and Control of Aviation Science and Technology Key Laboratory,China Special Vehicle Research Institute,Jingmen 448035)

机构地区：[1]航空工业第一飞机设计研究院,西安710089 [2]中国特种飞行器研究所,结构腐蚀防护与控制航空科技重点实验室,荆门448035

出　　处：《环境技术》2023年第1期20-27,共8页Environmental Technology

摘　　要：目的研究腐蚀环境下“铝-钛-铝”三层结构复合耳片的腐蚀防护性能,方法:开展典型“铝-钛-铝”三层结构复合耳片的加速腐蚀环境试验,加速腐蚀试验共20个周期,从宏观和微观两个方面分析“铝-钛-铝”三层结构复合耳片腐蚀形貌,应用扫描电镜(SEM)和能谱(EDS)分析微观腐蚀形貌、腐蚀产物,分析“铝-钛-铝”三层结构复合耳片在腐蚀环境下的腐蚀防护性能。结果:研究表明,通过20个周期的实验室加速腐蚀试验,“铝-钛-铝”三层结构复合耳片试验件没有出现腐蚀疲劳破坏,试验件轴承附近出现面积较大的点蚀坑。结论:选用合理的防护体系,腐蚀环境下典型“铝-钛-铝”三层结构复合耳片耐蚀性较好,对于“铝-钛-铝”三层结构在腐蚀环境下的应用推广有重要意义。Objective To study the corrosion protection performance of"aluminum-titanium-aluminum"threelayer structure composite ear piece in corrosive environment.Methods:The accelerated corrosion environment test of typical"aluminum titanium aluminum"three-layer structure composite ear piece was carried out.The accelerated corrosion test lasted for 20 cycles.The corrosion morphology of aluminum titanium aluminum three-layer structure composite ear piece was analyzed from both macro and micro aspects.The micro corrosion morphology was analyzed by scanning electron microscopy(SEM)and energy dispersive spectroscopy(EDS).The corrosion products were analyzed,and the corrosion protection performance of the"aluminum-titanium-aluminum"three-layer structure composite lug in the corrosive environment was analyzed.Results:The research shows that through 20 cycles of accelerated corrosion test in the laboratory,the"aluminum-titanium-aluminum"three-layer structure composite lug test piece did not show corrosion fatigue damage,and a large area of pitting corrosion pits appeared near the bearing of the test piece.Conclusion:The typical"aluminum-titanium-aluminum"three-layer structure composite ear piece has good corrosion resistance in corrosive environment by selecting a reasonable protective system,which is of great significance for the application and promotion of the"aluminumtitanium-aluminum"three-layer structure in corrosive environment.

关 键 词：典型“铝-钛-铝”三层结构 腐蚀环境 微观分析 腐蚀防护性能 

分 类 号：V252.2[一般工业技术—材料科学与工程]