More than 20 years of research progress regarding the nondestructive testing method of metal magnetic memory is reviewed and summarized in detail. Consequently, this overview is selective, covering what we feel are the most important trends of experimental phenomena, mechanism explanations, quantitative theories, simulations, testing, evaluation and application. From analyzing the current state of research on the method of metal magnetic memory, some key problems and future developmental trends are proposed. Although the research on magnetic memory method has made great progress, the practical application still faces problems such as complex influencing factors and less quantitative research. In the future, for magnetic memory method, it is necessary to strengthen the microscopic observations of magnetic domains, experiments of magnetomechanical constitutive, establishment of quantitative models, modeling of complex influencing factors, and the study of identification, inversion and criteria. In addition, the combination of other non-destructive testing methods can greatly improve the practical application of the magnetic memory method.

中文翻译：

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金属磁记忆无损检测方法研究综述：现状与挑战

详细回顾和总结了金属磁存储器无损检测方法20多年的研究进展。因此，这个概述是有选择性的，涵盖了我们认为最重要的实验现象、机制解释、定量理论、模拟、测试、评估和应用的趋势。从分析金属磁存储方法的研究现状出发，提出了一些关键问题和未来的发展趋势。尽管磁存储方法的研究取得了很大进展，但实际应用中仍面临影响因素复杂、定量研究较少等问题。今后，对于磁记忆法，有必要加强对磁畴的显微观察，磁力学本构实验，定量模型的建立，复杂影响因素的建模，识别、反演和判据的研究。此外，与其他无损检测方法相结合，可以大大提高磁记忆法的实际应用。