Residual Stresses in a Nickel-based Superalloy Introduced by Turning
2002 (English)In: Materials Science Forum, ISSN 0255-5476, Vol. 404-407, 173-178 p.Article in journal (Refereed) Published
Near-surface residual stress distributions in the nickel-based superalloy Inconel 718 that originate from the machining operation turning are studied. The turning process that is used in the experiments is face grooving which gives quasi-orthogonal cutting conditions. Cutting speed and feed have been varied to investigate their effects on the residual stress state. Tensile residual stresses with a maximum of 1300 MPa were found at the surface that turn rapidly into compressive residual stresses of up to -800 MPa. The depth distributions of the residual stresses are presented and discussed with respect to observations made by optical and transmission electron microscopy.
Place, publisher, year, edition, pages
2002. Vol. 404-407, 173-178 p.
residual stress, machining, superalloy, microstructure
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-24027DOI: 10.4028/www.scientific.net/MSF.404-407.173Local ID: 3582OAI: oai:DiVA.org:liu-24027DiVA: diva2:244343