Microstructure and mechanical properties of friction-stir welded St52 steel joints
Autor: | S. M. Aktarer, Güven İpekoğlu, Gürel Çam, Tevfik Küçükömeroğlu |
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Přispěvatelé: | Mühendislik ve Doğa Bilimleri Fakültesi -- Makina Mühendisliği Bölümü, İpekoğlu, Güven, Çam, Gürel |
Rok vydání: | 2018 |
Předmět: |
0209 industrial biotechnology
Mechanical properties 02 engineering and technology Welding law.invention Strength performance chemistry.chemical_compound 020901 industrial engineering & automation law Structural steel joints Materials Chemistry St52 steel Mining & Mineral Processing Composite material Microstructure Properties and microstructures Multidisciplinary Microhardness measurement Cementite Friction Stir Welding | Bobbin | Welded Joint Friction stir Metals and Alloys 021001 nanoscience & nanotechnology Mechanics of Materials Weldability 0210 nano-technology Equiaxed crystals Materials science Friction Materials Science Laser Research laboratories Indentation hardness Geochemistry and Petrology Tungsten carbide Ferrite (iron) Alloys Friction stir welding Mechanical Engineering Ferrite Microstructure and mechanical properties Butt welding Plates (structural components) chemistry Grain boundaries friction-stir welding Building materials Widmanstatten ferrite Metallurgy & Metallurgical Engineering |
Zdroj: | International Journal of Minerals, Metallurgy, and Materials. 25:1457-1464 |
ISSN: | 1869-103X 1674-4799 |
DOI: | 10.1007/s12613-018-1700-x |
Popis: | WOS: 000452499400011 The aim of this work is to investigate the mechanical properties and microstructures of friction-stir welded (FSWed) St52 structural steel joints. In this study, St52 steel plates with a thickness of 4 mm were butt-welded by friction-stir welding (FSW) using a tungsten carbide tool having a conical pin. The microstructure of the welded zone consists of equiaxed fine ferrite, grain boundary ferrite, Widmanstatten ferrite, and aggregates of ferrite + cementite. The microhardness measurements showed that the hardness of the welded zone was significantly higher than that of the base metal. The FSWed St52 joint exhibited a significant strength overmatching in the weld region and a strength performance similar to or slightly higher than that of the base plate. |
Databáze: | OpenAIRE |
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