应用声发射技术监测Q235钢的点蚀  

Pitting Monitoring of Q235 Steel with Acoustic Emission Technique

作　　者：李宝玉[1] 张伟[1] 杨雪松[1] 

机构地区：[1]黑龙江八一农垦大学工程学院,黑龙江大庆163319

出　　处：《材料保护》2013年第5期62-63,66,共3页Materials Protection

基　　金：教育部高校博士点基金(20092305110002);黑龙江省农垦总局科技计划项目(HNK10A-09-02-04);黑龙江省教育厅科研课题(12511359);黑龙江省农垦总局"十二五"重点科技攻关项目(HNK11A-05-11)资助

摘　　要：声发射(AE)可灵敏地检测材料结构的变化及损伤,目前对该技术用于金属点蚀监测的研究不多。建立了有效的AE试验平台,提取了Q235钢点蚀过程中产生的AE信号样本。结果表明,该信号特征与理论分析相吻合,低碳钢点蚀过程确实会产生AE信号。该技术可用来研究腐蚀发展规律及监测和评估腐蚀损伤。An efficient acoustic emission (AE) test platform was established,and the AE signals during pitting of Q235 steel were collected with the AE test rig. Results indicated that AE signals were indeed generated during the pitting of Q235 steel,and the characteristic AE signals collected with the AE test rig well conformed to relevant analytical ones. This meant that as-established AE test rig and technique could be applied to monitor the corrosion and corrosion-induced damage of metal.

关 键 词：点蚀监测 声发射 Q235钢 

分 类 号：TG172[金属学及工艺—金属表面处理]