Hostname: page-component-76fb5796d-skm99 Total loading time: 0 Render date: 2024-04-26T22:35:33.790Z Has data issue: false hasContentIssue false
  • English
  • Français

Impact of rolling temperature on microstructure, ordered phases, and ductility in Fe–6.5 wt% Si magnetic material

Published online by Cambridge University Press:  27 September 2016

Changsheng Li ,
Guojun Cai ,
Ban Cai  and
Qiwen Wang
Changsheng Li*
Affiliation:
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China
Guojun Cai
Affiliation:
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China
Ban Cai
Affiliation:
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China
Qiwen Wang
Affiliation:
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China
*
a)Address all correspondence to this author. e-mail: lics@ral.neu.edu.cn
Get access

Abstract

Ordered phases and ductility of Fe–6.5 wt% Si magnetic material were investigated under different rolling temperatures, and the constitutive equation of the warm deformation was established. The results show that at high rolling temperature, accompanying with the appearance of some shallow dimples, the intergranular fracture can be transformed into the quasicleavage fracture, which makes the ductility of warm-rolled sheets greatly improved. In the 450–650 °C rolling temperature range, the antiphase domains (APDs) of warm-rolled sheets are cut, the superdislocation density increases greatly with decreasing warm rolling temperatures, resulting in a decrease in APD sizes during warm deformation. Meanwhile, more B2 and DO3 ordered phases occurring in the matrix improve the long range order parameters, thereby significantly reducing ductility of the alloy. The work softening of Fe–6.5 wt% Si alloy is attributed to a contribution combining the sizes of APDs with ordered phases.

Keywords

Fe–6.5 wt% SiB2DO3APDsuperdislocation density
Type
Articles
Information
Journal of Materials Research , Volume 31 , Issue 19 , 14 October 2016 , pp. 3004 - 3015
Check for updates
Copyright
Copyright © Materials Research Society 2016 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Wu, Z.Y., Fan, X.A., Wang, J., Li, G.Q., Gan, Z.H., and Zhang, Z.: Core loss reduction in Fe–6.5 wt% Si/SiO2 core–shell composites by ball milling coating and spark plasma sintering. J. Alloys Compd. 617, 21 (2014).Google Scholar
Yu, J.H., Shin, J.S., Bae, J.S., Lee, Z.H., Lee, T.D., Lee, H.M., and Lavernia, E.J.: The effect of heat treatments and Si contents on B2 ordering reaction in high-silicon steels. Mater. Sci. Eng., A 307, 29 (2001).Google Scholar
Lin, Y.C.: Investigation of superparamagnetic fine particles of ordered (B2 + DO3) structure and ordered B2 structure with monoclinic a′ Mn. Mater. Sci. Eng., B 77, 40 (2000).Google Scholar
Cava, R.D., Botta, W.J., Kiminami, C.S., Olzon-Dionysio, M., Souza, S.D., Jorge, A.M. Jr., and Bolfarini, C.: Ordered phases and texture in spray-formed Fe–5 wt% Si. J. Alloys Compd. 509, S260 (2011).Google Scholar
Ma, H.J., Li, Y.J., Gerasimov, S.A., Wang, J., and Sun, X.L.: Investigation of transformation models of B2 → DO3 ordered structures for Fe3Al intermetallic under welding condition. Mater. Lett. 62, 1953 (2008).CrossRefGoogle Scholar
Fu, H.D., Yang, Q., Zhang, Z.H., and Xie, J.X.: Effects of precipitated phase and order degree on bending properties of an Fe–6.5 wt% Si alloy with columnar grains. J. Mater. Res. 26, 1711 (2011).Google Scholar
Yang, W., Li, H., Yang, K., Liang, Y.F., Yang, J., and Ye, F.: Hot drawn Fe–6.5 wt% Si wires with good ductility. Mater. Sci. Eng., B 186, 79 (2014).Google Scholar
Li, C.S., Yang, C.L., Cai, G.J., and Wang, Q.W.: Ordered phases and microhardness of Fe–6.5% Si steel sheet after hot rolling and annealing. Mater. Sci. Eng., A 650, 84 (2016).CrossRefGoogle Scholar
Ros-Yañez, T., Houbaert, Y., Fischer, O., and Schneider, J.: Production of high silicon steel for electrical applications by thermomechanical processing. J. Mater. Process. Technol. 143–144, 916 (2003).Google Scholar
Rodríguez-Calvillo, P., Houbaert, Y., Petrov, R., Kestens, L., and Colás, R.: High temperature deformation of silicon steel. Mater. Chem. Phys. 136, 710 (2012).CrossRefGoogle Scholar
Barros, J., Ros-Yañez, T., Vandenbossche, L., Dupré, L., Melkebeek, J., and Houbaert, Y.: The effect of Si and Al concentration gradients on the mechanical and magnetic properties of electrical steel. J. Magn. Magn. Mater. 290–291, 1457 (2005).Google Scholar
Li, Q., Wang, T.S., Jing, T.F., Gao, Y.W., Zhou, J.F., Yu, J.K., and Li, H.B.: Warm deformation behavior of quenched medium carbon steel and its effect on microstructure and mechanical properties. Mater. Sci. Eng., A 515, 38 (2009).Google Scholar
Zhang, Y.Q., Jiang, S.Y., Zhao, Y.N., and Shan, D.B.: Isothermal precision forging of complex-shape rotating disk of aluminum alloy based on processing map and digitized technology. Mater. Sci. Eng., A 580, 294 (2013).Google Scholar
Su, C.W., Chao, C.G., and Liu, T.F.: Formation of (B2 + DO3) phases at a/2〈100〉 anti-phase boundary in an Fe–23 at.%Al–8.5 at.%Ti alloy. Scripta Mater. 57, 917 (2007).Google Scholar
Ros-Yáñez, T., Ruiz, D., Barros, J., and Houbaert, Y.: Advances in the production of high-silicon electrical steel by thermomechanical processing and by immersion and diffusion annealing. J. Alloys Compd. 369, 125 (2004).Google Scholar
Koizumi, Y., Allen, S.M., Ouchi, M., and Minamino, Y.: Effects of solute and vacancy segregation on antiphase boundary migration in stoichiometric and Al-rich Fe3Al: A phase-field simulation study. Intermetallics 18, 1297 (2010).CrossRefGoogle Scholar
Li, H., Liang, Y.F., Yang, W., Ye, F., Lin, J.P., and Xie, J.X.: Disordering induced work softening of Fe–6.5 wt% Si alloy during warm deformation. Mater. Sci. Eng., A 628, 262 (2015).Google Scholar
Jung, H.J. and Kim, J.R.: Influence of cooling rate on iron loss behavior in 6.5 wt% grain-oriented silicon steel. J. Magn. Magn. Mater. 353, 76 (2014).Google Scholar
Naito, M., Nakagawa, T., Machida, N., Shigematsu, T., Nakao, M., and Sudoh, K.: Fabrication of highly oriented DO3–Fe3Si nanocrystals by solid-state dewetting of Si ultrathin layer. Thin Solid Films 539, 108 (2013).Google Scholar
Kim, K.N., Pan, L.M., Lin, J.P., Wang, Y.L., Lin, Z., and Chen, G.L.: The effect of boron content on the processing for Fe–6.5 wt% Si electrical steel sheets. J. Magn. Magn. Mater. 277, 331 (2004).CrossRefGoogle Scholar
Liang, Y.F., Shang, S.L., Wang, J., Wang, Y., Ye, F., Lin, J.P., Chen, G.L., and Liu, Z.K.: First-principles calculations of phonon and thermodynamic properties of Fe–Si compounds. Intermetallics 19, 1374 (2011).Google Scholar
Fan, L.J., Zhong, Y.B., Xu, Y.L., Shen, Z., Zheng, T.X., and Ren, Z.M.: Effect of static magnetic field on microstructure and interdiffusion behavior of Fe/Fe–Si alloy diffusion couple. J. Alloys Compd. 645, 369 (2015).Google Scholar
Chen, A.Y., Shi, S.S., Tian, H.L., Ruan, H.H., Li, X., Pan, D., and Lu, J.: Effect of warm deformation on microstructure and mechanical properties of a layered and nanostructured 304 stainless steel. Mater. Sci. Eng., A 595, 34 (2014).Google Scholar