采用声发射检测技术对5A03(LF3)铝合金腐蚀过程进行监测，证明利用声发射技术检测铝合金贮罐腐蚀破坏状态的可行性。根据实际使用中铝合金贮罐发生腐蚀的机理及特性制定5A03铝合金腐蚀的模拟试验方案，采集并分析了铝合金腐蚀声发射信号的分布及关联性。最后结合电化学试验验证了本实验的合理性。文章结论可作为现场声发射诊断的初步依据。

The erosion process of LF3 aluminium alloy was monitored by the acoustic emission technology, and the characteristic of the erosion acoustic emission signals of the Alloy was researched to prove the feasibility of using the acoustic emission technology to detect the erosion destruction condition of the aluminium alloy vessels. The research would extend the application scope of the acoustic emission technology. The stimulated experiment of erosion experiment of aluminium alloy was made according to the erosion principle and characteristic of the the aluminium alloy vessels in use. The erosion acoustic emission signals are obtained. The characteristic of these signals is researched, and the analysis of the distribution and relevancy of the character parameters is made. The electrochemistry experiment is made to prove the rationality of the experiment. The conclusions of this article can be used as the basis of the local fault diagnosis.