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  • Medvedeva, Anna,1981-Karlstads universitet,Avdelningen för maskin- och materialteknik (author)

Stress relaxation resistance for improved fatigue performance of shot peened tool components

  • Article/chapterEnglish2008

Publisher, publication year, extent ...

  • Tokyo :Academy Common Meiji University,2008
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:kau-5624
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-5624URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:kon swepub-publicationtype

Notes

  • Shot peening is an extensively used process in the production of mechanical components to improve their fatigue strength at ambient temperature. At higher working temperatures of some mechanical components, e.g. from 300 to 600°C, the influence and behaviour of the compressive residual stresses are more uncertain, since they tend to relieve at higher temperatures. The response to shot peening induced residual stresses of low alloyed and hot work tool steels was evaluated with respect to stress relief heat treatments and isothermal high temperature fatigue testing. Not only the residual stresses, but also the material substructure and its dislocation characteristics are of importance. Dislocation structures were determined using X-ray diffraction to explain the preference of the different steel grades. Also, results obtained from bending fatigue testing at ambient temperature of tool components after shot peening and stress relief heat treatments demonstrated the different ability of retaining the fatigue strength.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Bergström, Jens,1954-Karlstads universitet,Avdelningen för maskin- och materialteknik(Swepub:kau)jensberg (author)
  • Gunnarsson, StaffanResearch and Development, Uddeholm Tooling AB (author)
  • Höglund, DanMaterials and Process Engineering, AB Sandvik Coromant (author)
  • Karlstads universitetAvdelningen för maskin- och materialteknik (creator_code:org_t)

Related titles

  • In:Proceedings of the 10<sup>th</sup> International Conference on Shot Peening, 15-18 September, Tokyo, Japan, 2008Tokyo : Academy Common Meiji University, s. 286-295

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