Non-destructive Testing the Grain Size of 42GrMo by Using Barkhausen Noises

摘要：

The effect of grain size on magnetic Barkhausen Noise (BN) has been studied in 42GrMo steel. The BN signals and its waveforms have been analyzed and compared with hardness, stress, grain and coercivity. The grain size was measured by optical method. The relationship between half high ratio of BN and the grain size of 42GrMo are gotten. The different grain size can be shown by it very well. BN signals were considered to provide a better non-destructive testing method of grain size.

关键词： non-destructive testing Barkhausen Noise Grain size

作者: XU Yunhua

作者单位: School of Science, Beijing Jiaotong University, Beijing, 100044

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）