Abstract
The bonding between manganese sulfide (MnS) inclusions and the surrounding steel matrix was investigated by in-situ tensile testing in a scanning electron microscope (SEM) at room temperature. Tests were carried out for two different orientations of the inclusions with respect to the loading axis. The orientation was created during a hot cross rolling operation of the test material. Straining was performed along both longitudinal (L) and short transverse (S) directions. The investigation showed that the bond between the MnS inclusions and the matrix is weak. This was particularly seen in the S test direction where the sulfides, lying perpendicular to the load axis, delaminated from the matrix at very low applied stresses. The MnS inclusions in longitudinal tests instead fractured at high stress levels close to the yield stress.
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References
R. Kiessling and N. Lange: Non-Metallic Inclusions in Steel (Parts-IV), 2nd ed., The Metals Society, London, 1978, pp. 60, 104, 118, and 162
C. Temmel, B. Karlsson, N.-G. Ingesten: Metall. Mater. Trans. A, 2006, vol. 37A, pp. 2995–3007
D. Brooksbank, K.W. Andrews: J. Iron Steel Inst., 1972, vol. 210, pp. 246–55
C. Kaynak, A. Ankara, T.J. Baker: Mater. Sci. Technol. (UK), 1996, vol. 12, pp. 557–62
ASM Handbook, vol. 10, Failure Analysis Prevention, 8th ed., ASM INTERNATIONAL, Metals Park, OH, 1975, pp. 291–95
Y. Murakami: Metal Fatigue: Effects of Small Defects and Nonmetallic Inclusions. Elsevier, Amsterdam, 2002, p. 369
S. Suresh: Fatigue of Materials, 2nd ed., Cambridge University Press, Cambridge, USA, 2004, p. 679
C.E. Sims and F.B. Dahle: Am. Foundrymen’s Assoc., Trans., 1938, vol. 46, pp. 65–132
S.B. Hosseini: Bonding between MnS Inclusions and the Steel Matrix, Chalmers University of Technology, Göteborg, Sweden, 2005
K. Karttunen: Numerical Investigation of Ductile Fracture Induced by MnS Inclusions, Chalmers University of Technology, Göteborg, Sweden, 2005
http://www.chalmers.se/mmt/SV/forskning/materialteknologi/projekt/publikation-av-s-b
W. Roberts, B. Lehtinen, K.E. Easterling: Acta Metall., 1976, vol. 24, pp. 745–58
F. Beremin: Metall. Trans. A, 1981, vol. 12A, p. 723
A.A. Benzegra, J. Besson, A. Pineau: Acta Mater. Inc., 2004, vol. 52, pp. 4623–38
G.R. Speich, W.A. Spitzig: Metall. Trans. A, 1982, vol. 13A, pp. 2239–58
W.C. Leslie: ISS Trans., 1983, vol. 2, pp. 1–24
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This project has been economically supported by the Marshal National Research School for Material Science, by the Volvo Powertrain Corporation, and by the VINNOVA Program Board for Automotive Research.
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Manuscript submitted June 16, 2006.
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Hosseini, S.B., Temmel, C., Karlsson, B. et al. An In-Situ Scanning Electron Microscopy Study of the Bonding between MnS Inclusions and the Matrix during Tensile Deformation of Hot-Rolled Steels. Metall Mater Trans A 38, 982–989 (2007). https://doi.org/10.1007/s11661-007-9122-9
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DOI: https://doi.org/10.1007/s11661-007-9122-9