Detection of plastic deformation in structural steel using scanning SQUID microscopy

被引：13

作者：

Bonavolonta, C.

Valentino, M.

Adamo, M.

Sarnelli, E.

机构：

[1] IMAST, I-80055 Portici, NA, Italy

[2] CNR, INFM Coherentia, I-80125 Naples, Italy

[3] Univ Naples Federico II, Dept Phys Sci, Naples, Italy

[4] CNR, Ist Cibernet E Caianiello, I-80078 Pozzuoli, Italy

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2007年 / 18卷 / 07期

关键词：

magneto-mechanical effects; microscopy instrumentation; nondestructive testing of materials; SQUID devices;

D O I：

10.1088/0957-0233/18/7/043

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magneto- mechanical behaviour of structural steel specimens stressed up to a plastic deformation stage using a high- Tc scanning SQUID ( superconducting quantum interference device) microscope is investigated. The correlation between the gradient of the normal component of the magnetization and dislocation density, before the crack initiation, is carried out. The capability of scanning SQUID microscopy to detect the residual magnetization, due to the tensile stress, with a non- invasive technique is reported.

引用

页码：2116 / 2120

页数：5

共 7 条

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