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

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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)

Main Theme:

Edited by:

T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran

Pages:

3727-3732

Citation:

S. Hirano et al., "Metallurgical and Mechanical Properties of Friction Stir Welded Ultra Fine Grained Steel", Materials Science Forum, Vols. 539-543, pp. 3727-3732, 2007

Online since:

March 2007

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$38.00

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