磁巴克豪森残余应力测量技术在热处理工艺评估中的应用  

Application of Magnetic Barkhausen Noise Technique for Residual Stress Measuring to the Evaluation of Heat Treatment Process

作　　者：尹何迟[1] 陈立功[2] 张光业[1] 倪纯珍[2] 

机构地区：[1]湖南科技大学机电学院,湖南湘潭411201 [2]上海交通大学材料学院,上海200240

出　　处：《热处理》2008年第2期17-20,共4页Heat Treatment

基　　金：国家自然科学基金重大项目(59895152);湖南科技大学基金项目(E50443)

摘　　要：磁巴克豪森噪讯(Magnetic Barkhausen Noise,即MBN)方法是残余应力无损检测中的一门新技术。通过结合虚拟仪器技术,实现了巴克豪森噪讯的采集和实时处理,并应用于铁磁材料热处理后残余应力分析。通过与盲孔法的比较,验证了SM570板材焊缝区在热处理前后MBN噪讯与残余应力的相应变化。Magnetic Barkhausen Noise （MBN） is a new technique used in non-destructively detecting residual stress. Combining with the virtual instrument technology, collection and real-time processing of MBN will be achieved, which has been applied to the detection of residual stress in the heat-treated ferromagnetic materials. As compared with the data of blind-hole method, the corresponding changes Backhausen signals and residual stress in SM570 plate weld zone was verified before and after being heat-treated.

关 键 词：巴克豪森噪讯 LABVIEW软件 热处理 残余应力 

分 类 号：TG115[金属学及工艺—物理冶金]