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

被引：0
|
作者：
Saraev Y.N. [1 ,2 ]
Bezborodov V.P. [1 ,2 ]
Gladovskii S.V. [3 ]
Golikov N.I. [4 ]
机构：
[1] Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, Akademicheskii pr. 2/1, Tomsk
[2] National Research Tomsk Polytechnic University, pr. Lenina 30, Tomsk
[3] Institute of Mechanical Engineering, Ural Branch, Russian Academy of Sciences, Yekaterinburg
[4] Institute of Physicotechnical Problems of the North, Siberian Branch, Russian Academy of Sciences, ul. Oktyabr’skaya 1, Yakutsk
来源：
Russian Metallurgy (Metally) | 2017年 / 2017卷 / 04期
关键词：
heat-affected zone; impact toughness; low-frequency current modulation; mechanical properties; pulsed arc welding; welded joint;
D O I：
10.1134/S0036029517040206
中图分类号：
学科分类号：
摘要：
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. © 2017, Pleiades Publishing, Ltd.
引用
收藏
页码：287 / 292
页数：5
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