Abstract
High-speed rolling of AZ31B was carried out under various preheating temperatures from RT to 350 °C. The evolution of texture, grain sizes, and dislocation density distribution (Kernel average misorientation distributions) in the mid-thickness and surface layer were investigated. Computer simulations of deformation textures were also performed in order to understand deformation mechanisms. It is concluded that the temperature increase due to the plastic and frictional working during high-speed rolling makes the <c+a> slip system more active and, hence, improves the ductility. The surface layer of the specimen has higher temperature and experiences severe shear stress; therefore the texture, microstructure, and dislocation density distribution are different from those of the mid-thickness of the specimen. Both mid-thickness and surface layer are dynamically recrystallized during the high-speed rolling.
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References
Doege E et al (2003) Magnesium—alloys and technologies. Wiley-VCM, USA, pp 72–89
Kainer KU (2003) Magnesium—alloys and technologies. Wiley-VCM, USA, pp 1–22
Dieringa H et al (2007) In: Beales RS, Luo A, Neelameggham NR, Pekguleryuz MO (eds) Magnesium technology 2007. TMS, Warrendale, pp 3–8
Friedrich HE, Mordike BL (2006) Magnesium technology. Springer, USA
Utsunomiya H et al (2006) In: Luo A, Neelameggham NR, Beales RS (eds) Magnesium technology 2006. TMS, Warrendale, pp 201–204
Koike J, Kobayashi T, Mukai T, Watanabe H, Suzuki M, Maruyama K, Higashi K (2003) Acta Mater 51:2055
Yoshida Y, Cisar L, Kamado S, Kojima Y (2003) Mater Trans 44:468
Koh H et al (2007) Mater Trans 48:2023
Kato K, Saito Y, Sakai T (1984) Trans ISIJ 24:1050
Sakai T, Saito Y, Hirano K, Kato K (1988) Trans ISIJ 28:1028
Li H, Hsu E, Szpunar J, Verma R, Carter JT (2007) J Mater Eng Perform 16:321
Lebensohn RA, Tome CN (1993) Acta Metall 41:2611
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Li, H., Hsu, E., Szpunar, J. et al. Deformation mechanism and texture and microstructure evolution during high-speed rolling of AZ31B Mg sheets. J Mater Sci 43, 7148–7156 (2008). https://doi.org/10.1007/s10853-008-3021-3
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DOI: https://doi.org/10.1007/s10853-008-3021-3