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

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

doi:10.1080/13621718.2016.1142138

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

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

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	564-569
Number of pages	6
Journal	Science and Technology of Welding and Joining
Volume	21
Issue number	7
DOIs	https://doi.org/10.1080/13621718.2016.1142138
State	Published - Oct 2 2016

Bibliographical note

Publisher Copyright:
© 2016 US Government.

Keywords

Friction stir weld
High strength low alloy steel
Mechanical properties
Multilayer

Access to Document

10.1080/13621718.2016.1142138

Cite this

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title = "Fabrication of thick multilayered steel structure using A516 Grade 70 by multipass friction stir welding† ",

abstract = "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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T1 - Fabrication of thick multilayered steel structure using A516 Grade 70 by multipass friction stir welding†

AU - Lim, Y. C.

AU - Sanderson, S.

AU - Mahoney, M.

AU - Wang, Y.

AU - Chen, J.

AU - David, S. A.

AU - Feng, Z.

PY - 2016/10/2

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AB - 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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