The effect of laser transformation notching on the controlled fracture of a high carbon (C70S6 ) steel
Zhang, Deen and Harris, S. J. and McCartney, D.G. and Pashby, I.R. and Powell, J. and Shipway, P.H. and Voisey, K.T. (2008) The effect of laser transformation notching on the controlled fracture of a high carbon (C70S6 ) steel. Materials Science and Engineering: A, 489 (1-2). pp. 273-284. ISSN 0921-5093
A high carbon (C70S6) steel has been laser surface treated using CO2 and Diode lasers in order to produce an embrittled region to act as a fracture notch. Such a process has been investigated as a precursor to the fracture splitting of automotive engine connecting rods. Microstructures of the treated regions have been examined and the fracture behaviour of notched samples has been quantified.
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