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Structural-phase state and defective sub-structure of low-carbon steel welds
https://doi.org/10.22349/1994-6716-2021-108-4-74-81
Abstract
The structural-phase state, defective substructure and fracture surface of welds made of low-carbon alloy steel obtained with and without a carbon-containing additive have been investigated by scanning and transmission electron microscopy. A quantitative analysis of the parameters of the structure and dislocation substructure of the weld metal is carried out, and the contributions of the scalar and excess dislocation density to the strength of welds are estimated. It is shown that high values of scalar and excess dislocation density in a weld formed without a carbon-containing additive in the flux can lead to material embrittlement.
About the Authors
R. E. Kryukov
Siberian State Industrial University
Russian Federation
Russian Federation
Cand Sc. (Eng)
42 Kirova St, 654007 Novokuznetsk
N. A. Kozyrev
Siberian State Industrial University
Russian Federation
Russian Federation
Dr Sc. (Eng)
42 Kirova St, 654007 Novokuznetsk
V. E. Gromov
Siberian State Industrial University
Russian Federation
Russian Federation
Dr Sc. (Phys-Math)
42 Kirova St, 654007 Novokuznetsk
Yu. F. Ivanov
Institute of High Current Electronics SB RAS
Russian Federation
Russian Federation
Dr Sc. (Phys-Math)
2/3 Akademichesky Ave, 634055 Tomsk
Yu. A. Shliarova
Siberian State Industrial University
Russian Federation
Russian Federation
42 Kirova St, 654007 Novokuznetsk
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Review
For citations:
Kryukov R.E., Kozyrev N.A., Gromov V.E., Ivanov Yu.F., Shliarova Yu.A. Structural-phase state and defective sub-structure of low-carbon steel welds. Voprosy Materialovedeniya. 2021;(4(108)):74-81. (In Russ.) https://doi.org/10.22349/1994-6716-2021-108-4-74-81
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