Properties of the welded joints of manganese steel made by low-frequency pulsed arc welding

Abstract

The structure, the mechanical properties, the impact toughness, and the fracture mechanisms of the welded joints made of steel 09G2S plates by direct current welding and pulsed arc welding with a modulated arc current in the frequency range 0.25–5.0 Hz are studied. The application of low-frequency pulsed arc welding allowed us to form welded joints with a fine-grained structure in the weld metal and the heat-affected zone and to achieve a higher impact toughness and a longer cyclic fatigue life as compared to the welded joints fabricated by direct current welding. The achieved effect manifests itself over the entire testing range from 20 to–60°C.

Original language	English
Pages (from-to)	287-292
Number of pages	6
Journal	Russian Metallurgy (Metally)
Volume	2017
Issue number	4
DOIs	https://doi.org/10.1134/S0036029517040206
Publication status	Published - 1 Apr 2017

Keywords

heat-affected zone
impact toughness
low-frequency current modulation
mechanical properties
pulsed arc welding
welded joint

ASJC Scopus subject areas

Metals and Alloys

Access to Document

10.1134/S0036029517040206

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title = "Properties of the welded joints of manganese steel made by low-frequency pulsed arc welding",

abstract = "The structure, the mechanical properties, the impact toughness, and the fracture mechanisms of the welded joints made of steel 09G2S plates by direct current welding and pulsed arc welding with a modulated arc current in the frequency range 0.25–5.0 Hz are studied. The application of low-frequency pulsed arc welding allowed us to form welded joints with a fine-grained structure in the weld metal and the heat-affected zone and to achieve a higher impact toughness and a longer cyclic fatigue life as compared to the welded joints fabricated by direct current welding. The achieved effect manifests itself over the entire testing range from 20 to–60°C.",

keywords = "heat-affected zone, impact toughness, low-frequency current modulation, mechanical properties, pulsed arc welding, welded joint",

author = "Saraev, {Yu N.} and Bezborodov, {V. P.} and Gladovskii, {S. V.} and Golikov, {N. I.}",

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language = "English",

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pages = "287--292",

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T1 - Properties of the welded joints of manganese steel made by low-frequency pulsed arc welding

AU - Saraev, Yu N.

AU - Bezborodov, V. P.

AU - Gladovskii, S. V.

AU - Golikov, N. I.

PY - 2017/4/1

Y1 - 2017/4/1

N2 - The structure, the mechanical properties, the impact toughness, and the fracture mechanisms of the welded joints made of steel 09G2S plates by direct current welding and pulsed arc welding with a modulated arc current in the frequency range 0.25–5.0 Hz are studied. The application of low-frequency pulsed arc welding allowed us to form welded joints with a fine-grained structure in the weld metal and the heat-affected zone and to achieve a higher impact toughness and a longer cyclic fatigue life as compared to the welded joints fabricated by direct current welding. The achieved effect manifests itself over the entire testing range from 20 to–60°C.

AB - The structure, the mechanical properties, the impact toughness, and the fracture mechanisms of the welded joints made of steel 09G2S plates by direct current welding and pulsed arc welding with a modulated arc current in the frequency range 0.25–5.0 Hz are studied. The application of low-frequency pulsed arc welding allowed us to form welded joints with a fine-grained structure in the weld metal and the heat-affected zone and to achieve a higher impact toughness and a longer cyclic fatigue life as compared to the welded joints fabricated by direct current welding. The achieved effect manifests itself over the entire testing range from 20 to–60°C.

KW - heat-affected zone

KW - impact toughness

KW - low-frequency current modulation

KW - mechanical properties

KW - pulsed arc welding

KW - welded joint

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