Metallurgical and Mechanical Properties of Friction Stir Welded Ultra Fine Grained Steel

Satoshi Hirano; Kazutaka Okamoto; S.H.C. Park; K. Aota; T. Tsukamoto

doi:10.4028/www.scientific.net/MSF.539-543.3727

Paper Titles

Study on a Damage Tolerant Titanium Alloy
p.3702

Microstructures and Cohesiveness of Alkali- and Heat-Treated Films on a Ti-15Zr-4Nb-4Ta Alloy
p.3706

Characterisation of the Phase Transformations in a Metastable β Titanium Alloy
p.3712

Friction Stir Processing of Cast NiAl Bronze
p.3721

Metallurgical and Mechanical Properties of Friction Stir Welded Ultra Fine Grained Steel
p.3727

Local Manufacture of MMC Using FSW
p.3733

Microstructural Evolution of Cast Mg-Al-Ca Alloy during Friction Stir Processing
p.3739

Microstructure Evolution and Microstructure-Property Relationships in Friction Stir Processing of NiAl Bronze
p.3745

Tensile and Fatigue Properties of Friction Stir Processed NiAl Bronze
p.3751

HomeMaterials Science ForumMaterials Science Forum Vols. 539-543Metallurgical and Mechanical Properties of...

Metallurgical and Mechanical Properties of Friction Stir Welded Ultra Fine Grained Steel

Abstract:

Friction Stir Welding (FSW) has been applied to ultra fine grained (UFG) steel which is the plane carbon steel with the average grain size of 1mm. The plates of 5mm thickness was successfully welded using pcBN tool (polycrystalline cubic boron nitride) and the metallurgical and mechanical properties of the joint were evaluated. In the stir zone, Bainite has been formed which shows the highest harness in the joint. On the other hand, grain growth is observed in the heat affected zone. The joint effect of 88% has been obtained for UFG steel by FSW process.

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Periodical:

Materials Science Forum (Volumes 539-543)

Pages:

3727-3732

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.539-543.3727

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Online since:

March 2007

Authors:

Satoshi Hirano, Kazutaka Okamoto, S.H.C. Park, K. Aota, T. Tsukamoto

Keywords:

Friction Stir Welding (FSW), Grain Size, Hardness, Mechanical Property, Microstructure, Tensile Strength, Ultrafine Grained Steel

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References

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