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Electron Backscattered Diffraction of Transgranular Crack Propagation in Soft Steel |
| A. Boumaiza1;T. Baudin2;N. Rouag1;R. Penelle2 |
| 1Laboratoire Microstructures et Défauts, Université Mentouri Constantine, Algérie2Laboratoire de Physico-Chimie de l'Etat Solide UMR CNRS 8648, Paris-Sud Orsay, France |
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| Cite this article: |
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A. Boumaiza, T. Baudin, N. Rouag et al 2007 Chin. Phys. Lett. 24 1759-1762 |
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Abstract We consider the crack propagation in a soft steel sheet during the formation. The drawability is considered in relation with the structural anisotropy, the mechanical behaviour is related to both the grain morphology and the texture. The structure heterogeneity could lead to the apparition of micro-cracks. The results show the texture effect on the crack propagation and on the crack arrest in soft steel during the formation. The EBSD technique allows to show that the adjustment of the grain orientation from the initial main component {111}<112> towards the deformation orientation {111}<110> incites a trans-granular crack through a grain with initial {111}<112> orientation in a globally ductile material. It is the presence of grains with
{111}1<110> orientation which permits the closing of micro-cracks.
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| Keywords:
81.40.Np
62.20.Mk
68.35.Gy
62.20.Fe
91.60.Ba
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Received: 22 November 2006
Published: 17 May 2007
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| PACS: |
81.40.Np
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(Fatigue, corrosion fatigue, embrittlement, cracking, fracture, and failure)
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62.20.Mk
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68.35.Gy
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(Mechanical properties; surface strains)
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62.20.Fe
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91.60.Ba
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(Elasticity, fracture, and flow)
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[1] Jago R A and Hansen N 1986 Acta Metall. 34 1711
[2] Ritchie R O and Thompson A W 1985 Metall. Trans. A 16233
[3] Pardoen T and Delannay F 2000 Engin. Fracture Mech. 65455
[4] Gourgues A F 2002 Mater. Sci. Technol. 18 2119
[5] Venegas V, Caleyo F, Gonzalez J L, Baudin T, Hallen J M and PenelleR 2005 Scripta Materialia 52 147
[6] Klimek L and Pietrzyk B 2004 J. Alloys Compd. 38317
[7] Hu Y M, Floer W, Krupp U and Christ H J 2000 Mater. Sci.Engin. A 278 170
[8] Roe R J 1965 J. Appl. Phys. 36 2024 |
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