Abstract
Hot-stamped high strength steel (HSS) is widely used in body structure as a solution for weight-reduction of automobiles. In order to realize fast field measurement of mechanical properties of hot-stamped HSS parts, a magnetic Barkhausen noise (MBN) test system was developed. The system was used to measure hardness of hot-stamped bumper beam and strip with tailored properties. Results show good precision and convenience of the MBN method.
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