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Faculty of Mechanical Engineering, Lj. (FSLJ)
  • The influence of retained austenite on residual stresses in laser remelted cast iron
    Šturm, Roman, 1965- ; Grum, Janez, 1946-
    The presence and amount of residual stresses is very important in dynamically loaded automotive machine parts. In this investigation, the residual stresses after laser surface remelting were measured ... as a function of the modified layer depth on flat specimens from nodular cast iron. The results of the measured residual stresses confirm that the stresses strongly depend on the presence and quantity of the microstructure constituents in the surface remelted layer. Residual stresses have a characteristic profile in the modified surface layer. In the surface remelted layer, tensile residual stresses were found in a range between +70 and +200 MPa. The change from tensile into compressive residual stresses takes place in the lower part of the remelted layer. Maximum compressive residual stress values were found in the middle of the hardened layer in a range between -25 and -80 MPa.
    Source: Journal of materials engineering and performance. - ISSN 1059-9495 (Vol. 20, no. 9, Dec. 2011, str. 1671-1677)
    Type of material - article, component part
    Publish date - 2011
    Language - english
    COBISS.SI-ID - 12119835
    DOI

source: Journal of materials engineering and performance. - ISSN 1059-9495 (Vol. 20, no. 9, Dec. 2011, str. 1671-1677)

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