Relaxation of Shot Peening Residual Stresses in the 7050-T7451 Aluminium Alloy after Heat Cycles for Adhesive Bonding

  1. Prof. Dr.-Ing Lothar Wagner Chairman of ICSP8
  1. Martin Roth and
  2. C. Wortman

Published Online: 7 FEB 2006

DOI: 10.1002/3527606580.ch28

Shot Peening

Shot Peening

How to Cite

Roth, M. and Wortman, C. (2003) Relaxation of Shot Peening Residual Stresses in the 7050-T7451 Aluminium Alloy after Heat Cycles for Adhesive Bonding, in Shot Peening (ed L. Wagner), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606580.ch28

Editor Information

  1. TU Clausthal, Institut für Werkstoffkunde und Werkstofftechnik, Agricolastr. 6, D-38678 Clausthal-Zellerfeld, Germany

Author Information

  1. Department of National Defence, Ottawa, Ontario, Canada

Publication History

  1. Published Online: 7 FEB 2006
  2. Published Print: 12 MAY 2003

ISBN Information

Print ISBN: 9783527305377

Online ISBN: 9783527606580

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Keywords:

  • relaxation of shot peening residual stresses;
  • 7050-T7451 aluminium alloy

Summary

An experimental program was set up by the Canadian Forces to investigate:

(a) the effects of the low and high temperature cycles used for adhesive bonding on the relaxation of the shot peening residual stresses in the 7050-T7451 aluminium alloy,

(b) the effects of the grit blasting,

(c) the effects of a 2 hour exposure at 163 °C, as some areas of a part can reach that temperature in order to achieve the desired bondline temperature of 121 °C,

(d) and the effects of the low and high temperature cycles on fatigue crack initiation of shot peened 7050-T7451 aluminium alloy under a Canadian CF188 (F/A-18) spectrum loading.