SQUID NDE APPARATUS AND MAGNETIC CALIBRATION TO DETECT DEGRADATION IN DUPLEX STAINLESS-STEEL

被引：13

作者：

EVANSON, S ^{[1
]}

OTAKA, M ^{[1
]}

HASEGAWA, K ^{[1
]}

机构：

[1] HITACHI LTD,MECH ENGN RES LAB,HITACHI,IBARAKI 316,JAPAN

来源：

JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME | 1992年 / 114卷 / 01期

关键词：

Hysteresis - Magnetization - Stainless Steel--Aging - Stainless Steel--Nondestructive Examination;

D O I：

10.1115/1.2904138

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

We report on apparatus for the magnetic material characterization of a wide range of steel grades of high and low magnetic permeability. The instrument has been used to detect thermal aging in Duplex steel by the measurement of the residual magnetization (B(r)) of test specimens. A method to estimate the value of B(r) by remote measurements up to 200 mm from a specimen is described. The results are compared with data from conventional hysteresis loop measurements.

引用

页码：41 / 45

页数：5

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