Addition of nanoparticles to flux cored wires for the nucleation of acicular ferrite microstructure in weld metals of the high-strength low-alloy steel

被引：0

作者：

Ginzburg, Svetlana ^{[1
]}

Morozova, Iuliia ^{[1
]}

Kloshek, Alexander ^{[1
]}

Ossenbrink, Ralf ^{[1
]}

Michailov, Vesselin ^{[1
]}

Bobrynina, Elizaveta ^{[2
]}

Koltsova, Tatiana ^{[2
]}

Tolochko, Oleg ^{[2
]}

Koçak, Mustafa ^{[3
]}

Özbek, Sunullah ^{[4
]}

机构：

[1] Joining and Welding Technology, Brandenburg University of Technology, Cottbus-Senftenberg, Germany

[2] High School of Physics and Materials Technology, Peter the Great St. Petersburg Polytechnic University, Russia

[3] Istanbul Gedik University, Turkey

[4] Department of Mechanical Engineering, Istanbul Aydin University, Turkey

来源：

Welding and Cutting | 2020年 / 19卷 / 01期

关键词：

Welds - Ferrite - High strength steel - High-strength low-alloy steel - Offshore oil well production - Zirconia - High strength alloys - Metal nanoparticles - Toughness - Wind power - Wire;

D O I：

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中图分类号：

学科分类号：

摘要：

For the reliability of many welded structures like pipelines or offshore wind parks, it is necessary to ensure high mechanical properties such as strength and toughness of the entire material. In order to improve quality of weld joints, flux cored rods and wires containing different nanoparticles (ZrO2, LaB6 and Al2 O3) were manufactured and welded with the TIG and MAG welding processes. Influence of these nanoparticles on the microstructure and mechanical properties of the weld joints were investigated. The acicular ferrite and improved strength of the weld metals were observed by the addition of 0.2 wt.% of iron powder with ZrO2 nanoparticles to the filling of flux cored wires. © 2020, DVS Media GmbH. All rights reserved.

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页码：48 / 53