Test procedure for stress damage of ferromagnetic materials based on metal magnetic memory effects

被引：4

作者：

Wang, Guoqing ^{[1
]}

Yang, Lijian ^{[2
]}

Yan, Ping

Wei, Liwa ^{[3
]}

机构：

[1] Shenyang Univ Technol, Sch Informat Sci & Engn, 111 Shenliao West Rd, Shenyang 110870, Liaoning, Peoples R China

[2] Shenyang Univ Technol, Shenyang, Liaoning, Peoples R China

[3] Liaoning Shihua Univ, Sch Mech Engn, Fushun, Peoples R China

来源：

MATERIALS TESTING | 2018年 / 60卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Magnetic memory; perromagnetic material; stress damage; plastic deformation; test procedure; WELDED-JOINTS; FIELD;

D O I：

10.3139/120.111151

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This experimental investigation of the magnetic memory signal characteristic of a ferromagnetic material at different stress-strain states has been performed using X80 steel specimens. The magnetic signals were measured in accordance with these procedures at twice the elastic deformation and once the elastic deformation to fracture under the tensile load. The results indicate that magnetic memory signals linearly decrease with increasing tensile load in the elastic state and the reverse in the plastic stage. The intensity clearly increases when damage occurs which can be taken as evidence for damage caused by stress. The test was performed on an actual pipeline with a crack created by a special device. The effect of metal magnetic memory for the evaluation of damage caused by stress has thus been verified by this engineering procedure.

引用

页码：301 / 305

页数：5

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