Correlation between Magnetic Memory Signals and Mechanical Properties of 35CrMo Tempered and Quenched Steel

Abstract:

Magnetic memory signals and hardness of 35CrMo tempered and quenched steel were acquired during tensile testing. The magnetic signals of 35CrMo steel increased monotonously with the increase of tensile stress before yielding, followed by sudden decrease with further increase of stress after yielding. The zero-cross point of H_p(y) varied during tensile testing, indicating varied position of stress concentration zones with the process of tensile testing. Vickers hardness of the stress concentration zones of 35CrMo steel was lower than that around it, which may be attributed to the residual stress. The relationship between zero-cross point of H_p(y) and Vickers hardness was considered.

• Periodical: Applied Mechanics and Materials (Volume 750)
• Pages: 186-191
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.750.186
• Online since: April 2015
• Authors: Peng Ju Guo*, Xue Dong Chen, Wei He Guan, Hai Jiang Zhao
• Keywords: Metal Magnetic Memory Testing, Residual Compressive Stress, Stress Concentration Zone, Vickers Hardness

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