Fabrication of thick multilayered steel structure using A516 Grade 70 by multipass friction stir welding

Lim, Y. C.; Sanderson, S.; Mahoney, M.; Wang, Y.; Chen, J.; David, S. A.; Feng, Z.

doi:10.1080/13621718.2016.1142138

Title: Fabrication of thick multilayered steel structure using A516 Grade 70 by multipass friction stir welding

Journal Article · Sat Oct 01 00:00:00 EDT 2016 · Science and Technology of Welding and Joining

DOI:https://doi.org/10.1080/13621718.2016.1142138· OSTI ID:2281404

Lim, Y. C. ^[1]; Sanderson, S. ^[2]; Mahoney, M. ^[3]; Wang, Y. ^[1]; Chen, J. ^[1]; David, S. A. ^[1]; Feng, Z. ^[1]

Materials Science & Technology Division, Oak Ridge National Laboratory, TN, USA
MegaStir Technologies LLC, 333 West 2230 North, Provo, UT 84604, USA
Consultant, 1161 W. Sunburst Lane, Midway, UT 84049, USA

In the present work, a thick-sectioned multilayered steel structure was fabricated by multipass friction stir welding on A516 Grade 70 steel. Tensile strength of the multilayered samples was comparable to that of the base metal. Failure was located in the base metal when a defect-free sample was tested. Charpy impact toughness was higher in the stir zone and heat affected zone than in the base metal. Higher microhardness values were found in the stir zone and heat affected zone than the base metal due to grain refinement and modification of the microstructures. Consequently, improved mechanical properties compared to the base metal were found in the weld zones of friction stir welded A516 Grade 70 steel.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 2281404

Alternate ID(s):: OSTI ID: 1279387

Journal Information:: Science and Technology of Welding and Joining, Journal Name: Science and Technology of Welding and Joining Vol. 21 Journal Issue: 7; ISSN 1362-1718

Publisher:: SAGE PublicationsCopyright Statement

Country of Publication:: United Kingdom

Language:: English

Citation Metrics:

Cited by: 7 works

Citation information provided by
Web of Science

References (21)

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