On interrelation of damage accumulation in structural steels and physical parameters estimated by methods of acoustic emission and metal magnetic memory

L. R. Botvina; A. P. Soldatenkov; M. R. Tyutin; Yu. A. Demina; V. P. Levin; T. B. Petersen

doi:10.1134/S0036029517010037

On interrelation of damage accumulation in structural steels and physical parameters estimated by methods of acoustic emission and metal magnetic memory

Authors: Botvina L.R.¹, Soldatenkov A.P.¹, Tyutin M.R.¹, Demina Y.A.¹, Levin V.P.¹, Petersen T.B.²
Affiliations:
1. Baikov Institute of Metallurgy and Materials Science
2. OOO Diapak
Issue: Vol 2017, No 1 (2017)
Pages: 10-17
Section: Article
URL: https://journals.rcsi.science/0036-0295/article/view/171197
DOI: https://doi.org/10.1134/S0036029517010037
ID: 171197

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Abstract

The kinetics of microcrack accumulation at various stages of tension of smooth specimens of structural steels 20, 45, and 12Kh18N9T is studied. The microcrack length, the total number of microcracks, and the relative fraction of damaged surface are estimated, and a correlation of these characteristics with the time dependences of the acoustic emission parameters, the magnetic memory of metals, and the velocity and the attenuation of longitudinal ultrasonic waves is found.