Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-23T11:49:24.587Z Has data issue: false hasContentIssue false
  • English
  • Français

An experimental investigation on B2 phase transfer and grain boundary character on mechanical properties of rapidly cooled Fe–6.5 wt% Si alloy

Published online by Cambridge University Press:  04 December 2017

Guojun Cai ,
Changsheng Li ,
Ban Cai  and
Qiwen Wang
Guojun Cai
Affiliation:
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, Liaoning 110819, China
Changsheng Li*
Affiliation:
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, Liaoning 110819, China
Ban Cai
Affiliation:
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, Liaoning 110819, China
Qiwen Wang
Affiliation:
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, Liaoning 110819, China
*
a)Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

The combined effect of B2 phase transfer and grain boundary character on mechanical properties of the Fe–6.5 wt% Si alloy was investigated. The microstructures and textures of the Fe–6.5 wt% Si alloy under four cooling modes were characterized by X-ray diffraction, transmission electron microscope, and electron backscattered diffraction. The results reveal that the maximum nano-hardness value (8.9 GPa) results from the two-step air-cooling sample, while for the two-step water-cooling sample, the minimum value (5.3 GPa) is achieved. The transformation of the B2 phase affected by the water-cooling process is a critical factor in obtaining the lower APB energy and eliminating the brittlenes. A large fraction of the coincidence site lattice boundaries that formed on the sheet experienced the two-step water-cooling process due to a uniform and sharp γ-fiber recrystallization texture comprising the {111} 〈110〉 and {111} 〈112〉 components, which enhances resistance to intercrystalline effect and improves mechanical properties in comparison with the two-step air-cooling process.

Keywords

Fe–6.5 wt% SiB2CSL boundariesγ-fiberAPB energy
Type
Articles
Information
Journal of Materials Research , Volume 33 , Issue 4 , 28 February 2018 , pp. 507 - 515
Check for updates
Copyright
Copyright © Materials Research Society 2017 

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.)

Footnotes

Contributing Editor: Jürgen Eckert

References

REFERENCES

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
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
Liu, H.T., Li, H.Z., Li, H.L., Gao, F., Liu, G.H., Luo, Z.H., Zhang, F.Q., Chen, S.L., Cao, G.M., Liu, Z.Y., and Wang, G.D.: Effects of rolling temperature on microstructure, texture, formability and magnetic properties in strip casting Fe–6.5 wt% Si non-oriented electrical steel. J. Magn. Magn. Mater. 391, 65 (2015).CrossRefGoogle Scholar
Zheng, Z.L., Ye, F., Liang, Y.F., Ding, X.F., Lin, J.P., and Chen, G.L.: Formation of columnar-grained structures in directionally solidified Fe–6.5 wt% Si alloy. Intermetallics 19, 165 (2011).Google Scholar
Viala, B., Degauque, J., Fagot, M., Baricco, M., Ferrara, E., and Fiorillo, F.: Study of the brittle behaviour of annealed Fe–6.5 wt% Si ribbons produced by planar flow casting. Mater. Sci. Eng., A 212, 62 (1996).Google 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
Bai, Q., Zhao, Q., Xia, S., Wang, B.S., Zhou, B.X., and Su, C.: Evolution of grain boundary character distributions in alloy 825 tubes during high temperature annealing: Is grain boundary engineering achieved through recrystallization or grain growth. Mater. Charact. 123, 178 (2017).Google Scholar
Kobayashi, S., Kobayashi, R., and Watanabe, T.: Control of grain boundary connectivity based on fractal analysis for improvement of intergranular corrosion resistance in SUS316L austenitic stainless steel. Acta Mater. 102, 397 (2016).CrossRefGoogle Scholar
Watanabe, T., Fujji, H., Oikawa, H., and Arai, K-I.: Grain boundaries in rapidly solidified and annealed Fe–6.5 mass% Si polycrystalline ribbons with high ductility. Acta Metall. 37, 941 (1989).CrossRefGoogle Scholar
Zhang, Z.W., Wang, W.H., Zou, Y., Baker, I., Chen, D., and Liang, Y.F.: Control of grain boundary character distribution and its effects on the deformation of Fe–6.5 wt% Si. J. Alloys Compd. 639, 40 (2015).Google Scholar
Yan, H.T., Bi, H.Y., Li, X., and Xu, Z.: Effect of two-step cold rolling and annealing on texture, grain boundary character distribution and r-value of Nb + Ti stabilized ferritic stainless steel. Mater. Charact. 60, 65 (2009).Google Scholar
Gao, F., Yu, F.X., Misra, R.D.K., Zhang, X.J., Zhang, S.M., and Liu, Z.Y.: Microstructure, texture, and deep drawability under two different cold-rolling processes in ferritic stainless steel. J. Mater. Eng. Perform. 24, 3862 (2015).CrossRefGoogle Scholar
Li, C.S., Cai, G.J., Cai, B., and Wang, Q.W.: Impact of rolling temperature on microstructure, ordered phases, and ductility in Fe–6.5 wt% Si magnetic material. J. Mater. Res. 31, 3004 (2016).Google Scholar
Ye, D., Matsuoka, S., and Nagashima, N.: Determination of fatigue mesoscopic mechanical properties of an austenitic stainless steel using depth-sensing indentation (DSI) technique. Mater. Sci. Eng., A 456, 120 (2007).Google Scholar
Ma, R., Xie, Q., Huang, J., Yan, W.Y., and Guo, X.T.: Theoretical study on the electronic structures and magnetism of Fe3Si intermetallic compound. J. Alloys Compd. 552, 324 (2013).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
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).Google Scholar
Gilles, R., Hofmann, M., Johnson, F., Gao, Y., Mukherji, D., Hugenschmidt, C., and Pikart, P.: Analysis of antiphase domain growth in ternary FeCo alloys after different cooling rates and annealing treatments using neutron diffraction and positron annihilation. J. Alloys Compd. 509, 195 (2011).Google Scholar
Huang, Y.D., Yang, W.Y., and Sun, Z.Q.: Effect of the alloying element chromium on the room temperature ductility of Fe3Al intermetallics. Intermetallics 9, 119 (2001).Google Scholar
Depover, T., Pérez Escobar, D., Wallaert, E., Zermout, Z., and Verbeken, K.: Effect of hydrogen charging on the mechanical properties of advanced high strength steels. Int. J. Hydrogen Energy 39, 4647 (2014).Google Scholar
Bernier, N., Leunis, E., Furtado, C., Putte, T.V.D., and Ban, G.: EBSD study of angular deviations from the Goss component ingrain-oriented electrical steels. Micron 54–55, 43 (2013).Google Scholar
Wu, Q. and Zikry, M.A.: Microstructural modeling of transgranular and intergranular fracture in crystalline materials with coincident site lattice grain-boundaries: Σ3 and Σ17b bicrystals. Mater. Sci. Eng., A 661, 32 (2016).CrossRefGoogle Scholar
Sakaguchi, N., Ohguchi, Y., Shibayama, T., Watanabe, S., and Kinoshita, H.: Surface cracking on Σ3, Σ9 CSL and random grain boundaries in helium implanted 316L austenitic stainless steel. J. Nucl. Mater. 432, 23 (2013).Google Scholar
Yazdandoost, F. and Mirzaeifar, R.: Tilt grain boundaries energy and structure in NiTi alloys. Comput. Mater. Sci. 131, 108 (2017).Google Scholar