A study of magnetic flux-leakage signals

被引：71

作者：

Mandal, K ^{[1
]}

Atherton, DL ^{[1
]}

机构：

[1] Queens Univ, Dept Phys, Appl Magnet Grp, Kingston, ON K7L 3N6, Canada

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1998年 / 31卷 / 22期

关键词：

D O I：

10.1088/0022-3727/31/22/006

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetic flux-leakage (MFL) measurement is the most widely used non-destructive technique for in-service inspection of oil and gas pipelines. The effect of line-pressure-induced hoop stress on MFL signals has been studied for an electrochemically milled pit (50% penetration) in a 9 mm thick steel pipe wail. The existing theoretical models for flux-leakage signals are discussed. Among them the Zatsepin-Shcherbinin and Edwards-Palmer models have been fitted to the axial and radial MFL signals. Both the leakage-flux components under various stresses are scaled to make them stress independent.

引用

页码：3211 / 3217

页数：7

共 12 条

[1]

ATHERTON DL, 1989, OIL GAS J, V87, P52

[2] CHARACTERIZATION OF TEXTURE AND RESIDUAL-STRESS IN A SECTION OF 610 MM PIPELINE STEEL [J].

CLAPHAM, L ;

KRAUSE, TW ;

OLSEN, H ;

MA, B ;

ATHERTON, DL ;

CLARK, P ;

HOLDEN, TM .

NDT & E INTERNATIONAL, 1995, 28 (02) :73-82

[3]

CULLITY BD, 1972, INTRO MAGNETIC MAT, P373

[4] THE MAGNETIC LEAKAGE FIELD OF SURFACE-BREAKING CRACKS [J].

EDWARDS, C ;

PALMER, SB .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1986, 19 (04) :657-673

[5]

FORSTER F, 1985, MATER EVAL, V43, P1398

[6] Finite element modelling of magnet compression using coupled electromagnetic-structural codes [J].

Hainsworth, G ;

Leonard, PJ ;

Rodger, D .

IEEE TRANSACTIONS ON MAGNETICS, 1996, 32 (03) :1050-1053

[7]

Lord W., 1977, British Journal of Non-Destructive Testing, V19, P14

[8] Detection of stress concentrations around a defect by magnetic Barkhausen noise measurements [J].

Mandal, K ;

Dufour, D ;

SabetSharghi, R ;

Sijgers, B ;

Micke, D ;

Krause, TW ;

Clapham, L ;

Atherton, DL .

JOURNAL OF APPLIED PHYSICS, 1996, 80 (11) :6391-6395

[9] Investigations of magnetic flux leakage and magnetic Barkhausen noise signals from pipeline steel [J].

Mandal, K ;

Dufour, D ;

Krause, TW ;

Atherton, DL .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1997, 30 (06) :962-973

[10] The effects of defect depth and bonding stress on magnetic Barkhausen noise and flux-leakage signals [J].

Mandal, K ;

Corey, A ;

Loukas, ME ;

Weyman, P ;

Eichenberger, J ;

Atherton, DL .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1997, 30 (14) :1976-1983

← 1 2 →