Paper Titles
Calculation of Relaxation of Residual Stress and Change of Yield Strength in Shot Peened Layer
p.396
Residual Stress Relaxation during Fatigue of Clinched Joints in Stainless Steels
p.404
A Strategy for Life Prediction of Fatigue Loaded Welded Constructions by Use of Continuously Measured Micromagnetic Parameters
p.409
Effect of Very High Stress Levels on the Fatigue Life of a TiAl Based Alloy
p.418
Depth Resolved Investigation of Friction Stir Welds Made from AA2024 / AA2024 and AA2024 / AA6082 Using a Spiral Slit and High Energy Synchrotron Radiation
p.424
A Study on Residual Stress Relaxation under Quasi-Static Load
p.430
Residual Stress Relaxation and Cyclic Deformation Behavior of Deep Rolled AlMg4.5Mn (AA5083) at Elevated Temperatures
p.436
Stability and Relaxation of Homogeneous Microstresses in Two-Phase Steels with Cyclic Loading
p.442
Influence of Shot Peening on Fatigue Properties in Ultra-High Strength Steels
p.448

Depth Resolved Investigation of Friction Stir Welds Made from AA2024 / AA2024 and AA2024 / AA6082 Using a Spiral Slit and High Energy Synchrotron Radiation

Article Preview

Abstract:

The strain and phase distributions in friction stir welds (FSW) of AA2024-T3 to AA2024-T3 and AA2024-T3 to AA6082-T6 are investigated non-destructively. The measurements are performed using a novel depth resolved strain and phase mapping technique. The technique is based on the use of a focussed high energy synchrotron beam, a novel spiral slit system, and an area detector system. The strain scans across the dissimilar FSW exhibit a strong asymmetry in particular for the longitudinal strain component. A depth resolved strain mapping across the weld shows for the dominant longitudinal strain component variations in depth, especially on the AA6082 side of the dissimilar weld. The variations are significantlty weaker in the AA2024 / AA2024 weld. Results from the strain measurements are related to the depth resolved map of the material distribution in the weld zone.

You might also be interested in these eBooks
Residual Stresses VII, ICRS7 View Preview

Info:

Periodical:

Materials Science Forum (Volumes 490-491)

Pages:

424-429

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.490-491.424

Citation:

Cite this paper

Online since:

July 2005

Authors:

René V. Martins, Veijo Honkimäki

Keywords:

Friction Stir Welding (FSW), High Energy Synchrotron Radiation, Residual Stress, Spiral Slit

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2005 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] W.M. Thomas, E.D. Nicholas, J.C. Needham, M.G. Murch, P. Temple-Smith, and C.J. Dawes: International Patent No. PCT/GB92/02203, GB Patent No. 9125978. 8 (1991), US Patent No. 5, 460, 317 (1995).

Google Scholar

[2] W.M. Thomas, E.D. Nicholas: Materials & Design, 18, 4/6 (1997), p.269.

Google Scholar

[3] P.J. Webster, L. Djapic Oosterkamp, D.J. Hughes, P.J. Withers, G.B.M. Vaughan: J. of Strain Analysis, 36, 1 (2001), p.61.

Google Scholar

[4] M.A. Sutton, A.P. Reynolds, D. -Q. Wang, C.R. Hubbard: J. of Engineering Materials and Technology, 124 (2002), p.215.

Google Scholar

[5] A.P. Reynolds, Wei Tang, T. Gnäupel-Herold, H. Prask: Scripta Materialia, 48 (2003), p.1289.

Google Scholar

[6] L.E. Murr, Y. Li, E.A. Trillo, J.C. McClure: Mat Tech & Adv Perf Mat, 15, 1 (2000), p.37.

Google Scholar

[7] Metals Handbook, Vol. 2. American Society for Metals, ASM Int., Metals Park, Ohio (USA) (1990), p.70.

Google Scholar

[8] Honkimäki et al, in preparation.

Google Scholar

[9] R.V. Martins, V. Honkimäki: Textures and Microstructures (2003), p.145.

Google Scholar

[10] U. Lienert, R. Martins, S. Grigull, M. Pinkerton, H.F. Poulsen, Å. Kvick: Mat. Res. Soc. Symp. Proc., 590 (2000), p.241.

Google Scholar

[11] Q. Shi, T. Dickerson, H.R. Shercliff: Proc. 4th Int. Symp. on Friction Stir Welding, Park City, Utah, USA, 14-16 May (2003).

Google Scholar

[12] J.A. Wert: Scripta Materialia, 49 (2003).

Google Scholar