Modeling of occurrence of surface defects of C45 steel with genetic programming

Created by W.Langdon from gp-bibliography.bib Revision:1.4549

  author =       "Miha Kovacic and Robert Jager",
  title =        "Modeling of occurrence of surface defects of C45 steel
                 with genetic programming",
  journal =      "Materials and Technology",
  year =         "2015",
  volume =       "49",
  number =       "6",
  pages =        "857--863",
  keywords =     "genetic algorithms, genetic programming, mechanical
                 engineering, metallurgy, steel, C45 steel, making
                 steel, casting steel, steel plant, billet surface
  ISSN =         "1580-2949",
  URL =          "",
  URL =          "",
  size =         "7 pages",
  abstract =     "Carbon steel C45 with an increased content of carbon
                 is used for tempering in the automotive industry for
                 highly stressed parts (axles, shafts), machine parts,
                 screws, drills for wood, axes, knives, hammers and
                 similar. In the present work an attempt of analysing
                 the influences of different steel making parameters is
                 presented. On the basis of the monitored data about the
                 casting-temperature changes, the total oxygen, the
                 number of added aluminium rods, the chemical analyses
                 before and after steel-making, the added lime, the
                 aluminum-cored wire, the calcium-silicon-cored wire,
                 the sulphur-cored wire, the rolling dimensions, the
                 casting speed, the opening of the ladle nozzle with
                 oxygen and surface defects (scrap fraction) on rolled
                 bars, a mathematical model was obtained with the help
                 of the genetic programming method. The results show
                 that the most influential parameters for the
                 surface-defect occurrence on the C45 steel are the
                 opening of the ladle nozzle with oxygen and aluminum.
                 On the basis of the results, the steelmaking technology
                 was changed. Instead of the aluminium-killed
                 steelmaking technology the aluminium-calcium-free (ACF)
                 steelmaking technology was used. The batches from an
                 aluminium-calcium-free steelmaking period statistically
                 have a significantly lower level of surface defects
                 (scrap fraction). The scrap fraction was reduced from
                 the average of 68.45 percent to 1.92 percent - by more
                 than 35 times.",
  notes =        "MTAEC9, 49(6)857(2015)",

Genetic Programming entries for Miha Kovacic Robert Jager