Comparison of internal and residual stresses measured by strain-dip test and XRD during high temperature deformation of Al-Mg solid solutions

H. Sato, Y. Enomoto, K. Omote, S. I. Tanaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Creep behavior of solid solution alloys are reasonably explained by concepts of the "internal and effective stress of high temperature deformation". The internal stress is considered to be formed by dislocations, and long range stress filed should also be formed by dislocations in interior of alloys. Thus, residual stresses should be measurable by different methods. In this paper, measurements of the residual stresses in crept solid solutions by 2D-XRD method have been attempted, and the residual stresses are compared with so-called the "internal stress of high temperature deformation" measured by strain-dip stress-transient test. Although, components of stress tensor depend both on the deformation condition and position of specimen, the mean value of the maximum principal stress are smaller than the applied stress and show the same trend of the applied stress dependence with the mean internal stress measured by strain-dip stress-transient test. Importance of further considerations of the origin of so-called internal stresses is suggested.

Original languageEnglish
Title of host publicationInternational Conference on Residual Stresses 9 (ICRS 9)
PublisherTrans Tech Publications Ltd
Pages351-357
Number of pages7
ISBN (Print)9783037858493
DOIs
Publication statusPublished - 2014
Event9th International Conference on Residual Stresses, ICRS 2012 - Garmisch-Partenkirchen, Germany
Duration: 2012 Oct 72012 Oct 9

Publication series

NameMaterials Science Forum
Volume768-769
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other9th International Conference on Residual Stresses, ICRS 2012
Country/TerritoryGermany
CityGarmisch-Partenkirchen
Period12/10/712/10/9

Keywords

  • Creep deformation
  • Internal and effective stress
  • Stress transient technique

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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