Structure and Hardness of Friction Stir Welds out of High-Strength Non-Heat Hardenable Cast and Wrought Aluminum Alloys

Rafis Ilyasov; Pavel Predko; Elena Avtokratova; Valentin Konkevich; Oleg Sitdikov; Michael Markushev

doi:10.4028/www.scientific.net/MSF.830-831.270

Paper Titles

Effect of Varying Process Parameters on the Microstructure and Mechanical Properties of Cu-Cr-Zr-Ti Alloy Brazed Using Cu-Mn-Ni-Sn-Fe Foil
p.253

Characterization of Electron Beam Weld Joints of Alpha-Beta Titanium Alloys for Cryogenic Applications
p.257

Experimental Investigation and Micro-Structure Study of Interface of Explosive Welded SS304 and AA6061 Plates
p.261

Solder Joint Reliability of Sn-Cu and Sn-Ag-Cu Lead-Free Solder Alloys Solidified on Copper Substrates with Different Surface Roughnesses
p.265

Structure and Hardness of Friction Stir Welds out of High-Strength Non-Heat Hardenable Cast and Wrought Aluminum Alloys
p.270

Studies on Friction Stir Welding of Al-Cu-Li (AA2195) Alloy
p.274

Vacuum Brazing of Molybdenum – Kovar and Evaluation of its Joint Strength
p.282

Wetting Kinetics and Joint Strength of Sn-0.3Ag-0.7Cu Lead-Free Solder Alloy on Copper Substrate as a Function of Reflow Time
p.286

HomeMaterials Science ForumMaterials Science Forum Vols. 830-831Structure and Hardness of Friction Stir Welds out...

Structure and Hardness of Friction Stir Welds out of High-Strength Non-Heat Hardenable Cast and Wrought Aluminum Alloys

Abstract:

Optical and electron microscopy analyses of friction stir welds out of commercial cast and deformable Al-Mg-x alloys have shown the typical onion-like macrostructure consisting of alternating layers of both the alloys. Maximum microhardness of ~120 Hv has been found in the center of the welds owing to strong grain refinement and exceeding values for both the initial alloys. Mechanisms of structure transformations, as well as hardness changes in the nugget and thermo-mechanically affected zones are discussed.

You might also be interested in these eBooks

Advanced Materials and Manufacturing Processes for Strategic Sectors

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 830-831)

Pages:

270-273

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.830-831.270

Citation:

Cite this paper

Online since:

September 2015

Authors:

Rafis Ilyasov*, Pavel Predko, Elena Avtokratova, Valentin Konkevich, Oleg Sitdikov, Michael Markushev

Keywords:

Aluminium Alloy, Friction Stir Welding, Hardness, Microstructure, Recrystallization

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] W.M. Thomas, E.D. Nicholas, J.C. Needham, M.G. Murch, Patent UK 9125978. 8. (1993).

Google Scholar

[2] F.H. Froes Fourth international symposium on FSW (review), Light metal Age. 40 (2003) 38-40.

Google Scholar

[3] R.S. Mishra, Z.Y. Ma, Friction stir welding and processing, Mater. Sci. Eng. R. 50 (2005) 1-78.

Google Scholar

[4] Z.Y. Ma, Friction Stir Processing Technology: A Review, Met. Mater. Trans. A. 39 (2008) 642-658.

Google Scholar

[5] V.A. Frolov, A.N. Ivanyukhin, A.N. Sabantsev, S.A. Didenko, V. Yu. Konkevich, V.V. Belotserkovets, Friction stir welding – pluses and minuses, Welding International. 24 (2010) 358-365.

DOI: 10.1080/09507110903399224

Google Scholar

[6] Ye.V. Nikitina, V.A. Frolov, V.V. Stepanov, P. Yu. Predko, Investigation of the structural and chemical heterogeneity in welding of different groups of metallic materials, Welding International. 10 (2014) 793-798.

DOI: 10.1080/09507116.2013.868093

Google Scholar

[7] S.V. Krimsky, D.K. Nikiforova, M. Yu. Murashkin, M.V. Markushev, Effect of high-pressure torsion on primary phases in high-strength aluminum alloy, Perspect. Mat. 12 (2011) 387-391.

Google Scholar

[8] D.R. Nugmanov, O. Sh. Sitdikov, M.V. Markushev, Electron-microscopy analysis of changes in magnesium alloy parameters of excess phases due to multistep isothermal forging, Lett. on Mat. 4 (2014) 209-214.

DOI: 10.22226/2410-3535-2014-3-209-212

Google Scholar

[9] F.J. Humphreys, M. Hatherly, Recrystallization and Related Annealing Phenomena, second ed., Elsevier, (2004).

Google Scholar