Review of Research on Metal Magnetic Memory Detection Technology
The metal magnetic memory(MMM)was an emerging non-destructive testing technology with significant ad-vantages in characterizing cracks and stress damage in ferromagnetic materials under weak magnetic conditions,thereby it could assess the availability of components.We summarized the research progress in the field of metal magnetic memory o-ver the past decade,which covered the mechanisms of magneto-mechanical effects,experimental studies,damage assess-ment,and influencing factors.Through a comprehensive analysis of theoretical research on the magnetic/stress coupling effect,factors influencing detection signals,criteria for damage assessment,and defect identification,we summarized the advantages and key issues of metal magnetic memory technology,additionally,concluded and looked ahead to future empha-sis on exploring the micro-scale of the ferromagnetic field,developed magneto-mechanical coupling models,and expanded the practical application of metal magnetic memory testing in the engineering field.
magnetic memory of metalsdamage assessmentdetection technologyfatigue damageresearchpros-pects
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