Metal Magnetic Memory Testing Technology Development Status and Prospects

The metal magnetic memory testing(MMMT) can detect the stress concentration zone of ferromagnetic metal components. The technology researches were hopeful that solving the key of the components early diagnosis and life-time prediction. This paper introduces the metal magnetic memory testing principles and applications, analyzes the magnetic memory testing research situation in domestic and foreign, proposes the inadequacies on MMMT researches and the trend of MMMT development in the future.