常压储罐底板声发射在线检测是一种不用开罐而评估罐底腐蚀状况的无损检测技术,根据检测结果可以对储罐腐蚀状况进行分级.通过分析声发射信号的幅度分布和开罐检测后腐蚀减薄量分布规律,结果发现,两者都具有相似的幂函数形式,表明底板腐蚀具有分形特征,找出两者的相关性,实现了通过声发射活度定量描述底板的腐蚀速率大小,进而可预测底板的腐蚀剩余寿命.
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