Abstract
Usibor® 1500P coupons are austenitized in a Gleeble 3500 thermomechanical simulator using a two-step heating procedure in an argon atmosphere. Variations in spectral emissivity are measured in-situ using a near infrared spectrometer and ex situ with a Fourier transform infrared reflectometer. Microstructural evolution and surface roughness are investigated using optical microscopy, FE-scanning electron microscopy, and a surface profilometer. A series of phase transformations of Al-Fe-Si intermetallic phases at the coating/steel substrate interface cause the surface phase and surface roughness to change, which in turn influences the spectral emissivity. At the beginning of the first heating step, the coupons have very low spectral emissivity, due to the molten Al-Si coating. Spectral emissivity increases significantly with increasing soak time from 5 to 12 minutes, associated with the surface phase transformation of the coating into Al7Fe2Si intermetallic phase and an increase in surface roughness. Through the second step heating at 1173 K (900 °C), the spectral emissivity shows a gradually decreasing trend with increasing soak time, caused by the surface phase transformation from Al5Fe2 into AlFe intermetallic phase with a decrease in surface roughness.
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1.H. Karbasian and A.E. Tekkaya: J. Maters. Proc. Technol., 2010, vol. 210, pp. 2103-18.
2.C. Allély, L. Dosdat, O. Clauzeau, K. Ogle, and P. Volovitch: Surf. Coat. Technol., 2014, vol. 238, pp. 188-96.
J. Tonne, J. Clobes, M. Alsmann, A. Ademaj, M. Mischka, W. Morgenroth, H. Becker and O. Stursberg: in The 4th International Conference on Hot Sheet Metal Forming of High Performance Steel, pp. 177–84, Luleå, Sweden, 2013.
N.L. Chester, K.J. Daun and M.A. Wells: in ASME International Mechanical Engineering Congress and Exposition, Montreal, Canada, 2014.
K.S. Jhajj, K.J. Daun, M.A. Wells and S.R. Slezak: in The 5th International Conference on Hot Sheet Metal Forming of High-Performance Steel, Toronto, Canada, 2015.
6. J. Pujana, L.D. Campo, R.B. Pérez-Sáez, M. J. Tello, I. Gallego and P.J. Arrazola: Meas. Sci. Technol. 2007, vol. 18, pp. 3409-3416.
7. C.D. Wen: Intl. J. Heat Mass Transfer, 2010, vol. 53, pp. 2035-2043.
8. C.D. Wen and I. Mudawar: Intl. J. Heat Mass Transfer, 2006, vol. 49, pp. 4279-4289.
9. Y.M. Wang, H. Tian, X.E. Shen, L. Wen, J.H. Ouyang, Y. Zhou, D.C. Jia and L.X. Guo: Ceramics Int., 2013, vol. 39, pp. 2869-2875.
10. R. Grigorieva, P. Drillet, J.M. Mataigne and A. Redjaïmia: Solid State Pheno., 2011, vol. 172, pp. 784-790.
11. T. Maitra and S.P. Gupta: Mater. Charact., 2003, vol. 49, pp. 293-311.
12. W.J. Cheng and C.J. Wang: Surf. Coat. Technol., 2011, vol. 205, pp. 4726-4731.
13. M. Windmann, A. Röttger and W. Theisen: Surf. Coat. Technol., 2013, vol. 226, pp. 130-139.
14. J. Song, X. Wang, T. DenOuden and Q. Han: Mater. Trans. A, 2016, vol. 47A, pp. 2609-2615.
15. J.L. Murray and A.J. McAlister: Bulletin of Alloy Phase Diagrams, 1984, vol. 5, pp. 74-84.
16. C.D. Wen and I. Mudawar: Intl. J. Heat Mass Transfer, 2005, vol. 48, pp. 1316-1329.
17. H. Mehrer: Diffusion in Solid Metals and Alloys, Landolt-Börnstein, Numerical Data and Functional Relationships in Science and Technology, New Series, Berlin: Springer-Verlag, 1990.
18. A.K. Bewoor and V.A. Kulkarni: Metrology & measurement, New Delhi: Tata McGraw-Hill, 2009.
19. J.A. Ogilvy: Rep. Prog. Phys., 1987, vol. 50, pp. 1553-1608.
20. H. Davies: Proc. IEEE, 1954, vol. 101, pp. 209-214.
21. H.J. Yu, G.Y. Xu and X.M. Shen: Appl Surf Sci., 2009, vol. 255, pp. 6077-6081.
Acknowledgments
The authors would like to acknowledge the financial support from the Natural Sciences and Engineering Research Council Canada-Automotive Partnership Canada (NSERC-APC). The authors also gratefully thank Professor M.R. Collins of University of Waterloo for providing the Fourier transform infrared reflectometer, and Mr. M.A. Whitney, Mr. M. Griffett and Dr. Y. Ding of University of Waterloo for their technical assistance.
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Manuscript submitted September 25, 2015.
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Shi, C., Daun, K.J. & Wells, M.A. Evolution of the Spectral Emissivity and Phase Transformations of the Al-Si Coating on Usibor® 1500P Steel During Austenitization. Metall Mater Trans B 47, 3301–3309 (2016). https://doi.org/10.1007/s11663-016-0791-x
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DOI: https://doi.org/10.1007/s11663-016-0791-x