Study on the characteristics of magnetic memory signals at ferromagnetic material defects

被引：0

作者：

Bao S. ^{[1
]}

Zhao Z.-Y. ^{[1
]}

Jin P.-F. ^{[1
]}

Yang J. ^{[1
]}

机构：

[1] College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310058, Zhejiang

来源：

Gongcheng Lixue/Engineering Mechanics | 2020年 / 37卷

关键词：

Defects; Ferromagnetic materials; Magnetic field characteristics; Magnetic memory signals; Stress concentration;

D O I：

10.6052/j.issn.1000-4750.2019.06.S054

中图分类号：

学科分类号：

摘要：

In order to study the effect of defects on the surface magnetic field of specimen, a series of stepwise loading tensile tests were carried out on 30Cr alloy steel. Defects were artificially prefabricated in advance on the surface of specimens. The magnetic field signal was collected by a TSC-1M-4 magnetic detector and the characteristics of magnetic field signals were studied. It shows that the tangential magnetic field is more sensitive to the local yield of specimen. The surface magnetic memory signal changes significantly at the edge of defects. Thus, it is an feasible method to evaluate the state of stress concentration by surface magnetic memory signal. © 2020, Engineering Mechanics Press. All right reserved.

引用

页码：371 / 375

页数：4

共 12 条

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