Location

La Jolla, CA

Start Date

1-1-1989 12:00 AM

Description

The objective of this study was to determine how magnetic properties such as coercivity, hysteresis loss and initial susceptibility of AISI 4140 steels depended on the expended fatigue life. If one or more of these magnetic properties was found to be sensitive to fatigue cycling, then it should be possible to devise a magnetic NDE technique based on these results, for monitoring of in-service components subjected to fatigue cycling.

Volume

8B

Chapter

Chapter 9: Characterization of Materials

Section

Ferrous Materials and Methods

Pages

2061-2066

DOI

10.1007/978-1-4613-0817-1_261

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Detection of Expended Fatigue Life of AISI 4140 Steels from Magnetic Measurements

La Jolla, CA

The objective of this study was to determine how magnetic properties such as coercivity, hysteresis loss and initial susceptibility of AISI 4140 steels depended on the expended fatigue life. If one or more of these magnetic properties was found to be sensitive to fatigue cycling, then it should be possible to devise a magnetic NDE technique based on these results, for monitoring of in-service components subjected to fatigue cycling.