Stress measurement using magnetic Barkhausen noise and metal magnetic memory testing

Ping Wang, Shougao Zhu, Gui Yun Tian, Haitao Wang, John Wilson, Xin Wang

    Research output: Contribution to journalArticlepeer-review

    Abstract

    This paper introduces a comparison of the magnetic Barkhausen noise (BN) and metal magnetic memory (MMM) testing techniques for stress measurement. BN has become an important non-destructive technique due to its exceptional material and stress characterization capabilities. MMM is a recently developed technique with special ability for stress detection and stress history. In the applied tensile experiment, BN and MMM signals were acquired via a BN measurement system and EMS-2003 MMM instrument. Relationships between magnetic signals and applied tensile stresses were derived from experiment results. The difference and correlation of the two methods are investigated. Conclusions were derived based on the experiment results.
    Original languageEnglish
    Pages (from-to)055703
    Number of pages1
    JournalMeasurement Science and Technology
    Volume21
    Issue number5
    Publication statusPublished - 2010

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