A Study on the Relationship between Hardness and Magnetic Properties of Ultra-High Strength Steel

Abstract:

Magnetic nondestructive testing methods including eddy current testing, magnetic memory, magnetic Barkhausen noise and so on are widely used in testing mechanical properties of ferromagnetic parts. Experiments were done to study the relationship between hardness and magnetic properties of ultra-high strength steel (UHSS), which plays an important role in automobile industry. The magnetic properties of UHSS specimens with different hardness were studied. The result shows that there is a strong connection between hardness and magnetic properties. Coercive force of UHSS is proportional to the hardness. This can be used to explain certain mechanism of magnetic nondestructive testing method such as connection between hardness and Barkhausen noise.

• Periodical: Advanced Materials Research (Volume 1063)
• Pages: 78-81
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1063.78
• Online since: December 2014
• Authors: Yu Zhang, Zi Jian Wang, Yi Lin Wang, Zhi Jian Zhang, Yi Sheng Zhang*
• Keywords: Barkhausen Noise, Coercive Force, Hardness, Magnetic Property, Ultra-High Strength Steel

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