10.14489/td.2024.04.pp.054-063

2024, 04 April

DOI: 10.14489/td.2024.04.pp.054-063

Busko V. N., Nichipuruk A. P., Stashkov A. N.
THE METHOD OF MECHANICAL TESTING AND INVESTIGATION OF THE POSSIBILITY OF FATIGUE STRENGTH CONTROL BY THE MAGNETO-NOISE METHOD OF STEEL SAMPLES MANUFACTURED BY ADDITIVE TECHNOLOGY
(pp. 54-63)

Abstract. Steel products manufactured using additive technologies are an alternative to traditional methods of their production. The specific method of their forming actualizes the issue of strict control of their quality, including fatigue strength. To investigate the possibility of control on the samples of low-alloyed steel 09G2S produced by selective laser alloying and, for comparison, by casting method, it is proposed to use the magnetic noise method. For mechanical tests of specimens in bending a simple original portable stand was created, a methodology of fatigue strength research and a program of specimen testing were developed. The tests have shown the efficiency of using the methodology and the bench in the study of fatigue strength. The results of evaluation of local heterogeneity of specimen properties before cycling and the effect on the magnetic noise level of the number of cycles at the initial period of loading at low cycle amplitude are presented.

Keywords: additive technologies, 3D steel samples, fatigue, fatigue strength, selective laser fusion, Barkhausen effect method, magnetic noise method and magnetic noise, microstructure.

+ - About the Authors Click to collapse

V. N. Busko (State Scientific Institution "Institute of Applied Physics of the National Academy of Sciences of Belarus", Minsk, Belarus) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. -net
A. P. Nichipuruk, A. N. Stashkov (M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Yekaterinburg, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

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