Microstructure and mechanical properties of friction-stir welded St52 steel joints

Autor: S. M. Aktarer, Güven İpekoğlu, Gürel Çam, Tevfik Küçükömeroğlu
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
Externí odkaz: