Fatigue dependence of residual magnetization in austenitic stainless steel plates

Author

Oka, Mohachiro ; Yakushiji, Terutoshi ; Enokizono, Masato

Author_Institution

Dept. of Comput. & Control Eng., Oita Nat. Coll. of Technol. Univ., Japan

Volume

37

Issue

4

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

2045

Lastpage

2048

Abstract

In order to estimate the amount of bending fatigue damage on austenitic stainless steel plates, we have investigated the relationship between plane bending stress and residual magnetization caused by martensitic structure in austenitic stainless steel plates. Magnetic flux density in the Z component caused by residual magnetization at 1 mm above a specimen is measured by using a high sensitivity fluxgate magnetic sensor. It can detect a very small magnetic flux density. From our experiments, the magnetic flux density at 1 mm above a specimen caused by residual magnetization has clear dependences on the increase of bending stress and the number of stress cycles. In this paper, the relationship between bending stress and residual magnetization in austenitic stainless steel plates is shown and the bending fatigue dependence of residual magnetization on them is discussed

Keywords

austenitic stainless steel; bending; fluxgate magnetometers; magnetic sensors; magnetic variables measurement; magnetisation; martensitic structure; 1 mm; Z component; austenitic stainless steel plates; bending; bending stress; fatigue damage; magnetic flux density; nondestructive sensing; residual magnetization; Fatigue; Inorganic materials; Life estimation; Magnetic flux density; Magnetic heads; Magnetic materials; Magnetic sensors; Magnetization; Residual stresses; Steel;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.951048

Filename

951048