Recent advances in magnetic non-destructive testing and the application of this technique to remanufacturing

As an emerging green technology, remanufacturing has received increasing attention worldwide due to its energy-saving and waste-reducing benefits in manufacturing processes. Core damage assessment and repair quality evaluation are two important issues in remanufacturing. Magnetic non-destructive testing (NDT) has positive effects on remanufacturing quality control because of its unique detection advantages. Three magnetic NDT technologies, namely the magnetic memory method (MMM) and the use of magnetic Barkhausen noise (MBN) and magnetoacoustic emission (MAE), are introduced in this study. An overview of the fundamentals and recent advances of these magnetic NDT technologies are provided based on a literature review of over 100 references published from 2000 to 2017 in various academic journals. Their present and potential applications in remanufacturing engineering are then summarised and compared and existing problems and prospects are presented.