Characterisation of residual stresses in machined surfaces of a high strength nickel-base superalloy

W. Li, M. Preuss, P. J. Withers, D. Axinte, P. Andrews

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

8 Citations (Scopus)

Abstract

The near surface residual stresses introduced by turning on a nickel-base superalloy RR1000 are studied. X-ray diffraction residual stress measurements have been made in both radial and circumferential directions as a function of depth. These show systematic changes in stress magnitude and depth profile. The extent of the plastic deformation has been determined by the variation of the diffraction peak width in the XRD measurement. Both the residual stresses and the plastic work have been found to vary sharply over the first 100 μm. The variation in unstressed lattice spacing with depth points to a heat affected zone of 40 μm in thickness.

Original languageEnglish
Title of host publicationResidual Stresses VII - Proceedings of the 7th European Conference on Residual Stresses, ECRS 7
EditorsWalter Reimers, S. Quander
PublisherTrans Tech Publications Ltd
Pages587-592
Number of pages6
ISBN (Print)9780878494149
DOIs
Publication statusPublished - 2006
Externally publishedYes
Event7th European Conference on Residual Stresses, ECRS 7 - Berlin, Germany
Duration: 13 Sep 200615 Sep 2006

Publication series

NameMaterials Science Forum
Volume524-525
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference7th European Conference on Residual Stresses, ECRS 7
Country/TerritoryGermany
CityBerlin
Period13/09/0615/09/06

Keywords

  • Peak width variation
  • Plastic work
  • Residual stress
  • Turning
  • X-ray diffraction

ASJC Scopus subject areas

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

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