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Experimental Investigation of Shot Peening on Case Hardened SS2506 Gear Steel
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.). Scania CV AB, Sweden.
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.).
2017 (English)In: Experimental techniques (Westport, Conn.), ISSN 0732-8818, E-ISSN 1747-1567, Vol. 41, no 4, p. 433-451Article in journal (Refereed) Published
Abstract [en]

Shot peening is a manufacturing process commonly used to increase fatigue life in components for the automotive and aircraft industry. In this paper the effect of shot peening is described for a case hardened gear steel. For gears there are three main factors from shot peening that influence fatigue life: residual stresses, microstructure and surface roughness. The paper describes an experimental series where these parameters were measured for common industrial shot peening settings. The aim was to show how several different measurement techniques and results correspond to each other for certain shot peening parameters. The aim was also to gather experimental results that can be used for verification of shot peening simulations. To simplify measurements and decrease variation, flat steel plates were used as targets. Residual stress, full width at half maximum (FWHM), retained austenite, surface roughness/topology, hardness and Barkhausen noise were measured and related to microstructural changes. The mean indentation diameter was measured for individual shots at low coverage of each intensity which was used to determine the average velocity of the media. The mean diameter and hardness of the shot peening media was also determined.

Place, publisher, year, edition, pages
Springer, 2017. Vol. 41, no 4, p. 433-451
Keywords [en]
Barkhausen noise, EBSD, Residual stress, Retained austenite, Shot peening, Surface roughness, Vickers hardness
National Category
Other Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-212267DOI: 10.1007/s40799-017-0183-4ISI: 000406977900010Scopus ID: 2-s2.0-85021652753OAI: oai:DiVA.org:kth-212267DiVA, id: diva2:1133861
Note

QC 20170817

Available from: 2017-08-17 Created: 2017-08-17 Last updated: 2017-08-25Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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