Abstract
In situ neutron diffraction was utilized to examine the solidification behavior of aluminum and magnesium alloys for further understanding of solidification, hot tearing, and grain refinement. The experiments consisted of melting samples and allowing them to cool while being irradiated by neutrons. During solidification, solid phases enabled diffraction of neutrons. The diffraction profiles were collected at each temperature step and were used to interpret the growth of individual planes and phases. In situ neutron diffraction enabled determination of fraction solid curves for individual planes and phases, which was not possible with traditional thermal analysis and computational techniques. This paper outlines the method of generation of fraction solid curves from neutron diffraction intensity data, including a technique to account for the effects of the Debye–Waller factor. This method was successful in revealing detailed insights into crystalline solidification. It showed promise in quantifying many other phenomena beyond those discussed.
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References
Stefanescu D M, Int J Met 9 (2015) 7.
Djurdjevic M B, Huber G, and Odanovic Z, J Therm Anal Calorim 111 (2013) 1365.
Robles Hernandez F C, Al–Si alloys automotive, aeronautical, and aerospace applications, Springer, Cham (2017).
Bale C W, Bélisle E, Chartrand P, Decterov S A, Eriksson G, Hack K, Jung I-H, Kang Y-B, Melançon J, Pelton A D, Robelin C, and Petersen S, Calphad Comput Coupling Phase Diagr Thermochem 33 (2009) 295.
Bale C W, Chartrand P, Degterov S A, Eriksson G, Hack K, Ben Mahfoud R, Melançon J, Pelton A D, and Petersen S, Calphad Comput Coupling Phase Diagr Thermochem 26 (2002) 189.
Schmid-Fetzer R, and Zhang F, Calphad Comput Coupling Phase Diagr Thermochem 61 (2018) 246.
Vogel S C, and Carpenter J S, JOM 64 (2012) 104.
Kasprzak W, Sediako D, Sahoo M, Walker M, and Swainson I, TMS Annual Meeting and Exhibition 1 (2010) 93.
Kasprzak W, Sediako D, Walker M, Sahoo M, and Swainson I, Metall Mater Trans A 42 (2011) 1854.
Sediako D, and Kasprzak W, TMS Light Metals (2012) 355.
Vandersluis E, Sediako D, Ravindran C, Elsayed A, and Byczynski G, J Alloys Compd 736 (2018) 172.
D’Elia F, Ravindran C, Sediako D, and Donaberger R, Can Metall Q 54 (2014) 9.
D’Elia F, Ravindran C, Sediako D, Kainer K U, and Hort N, Mater Des 64 (2014) 44.
Stroh J, Davis T, McDougal A, and Sediako D, TMS Light Metals (2018) 1059.
Elsayed A, Sediako D, and Ravindran C, Can Metall Q 54 (2015) 16.
Elsayed A, Sediako D, and Ravindran C, J Mater Eng Perform 24 (2015) 2250.
Elsayed A, and Ravindran C, J Mater Eng Perform 23 (2014) 628.
Cullity B D, and Stock S R, Elements of X-ray Diffraction, Third Edition, Prentice-Hall, New York (2001).
Fultz B, and Howe J M, Transmission Electron Microscopy and Diffractometry of Materials, Fourth Edition, Springer, Heidelberg (2013).
Acknowledgements
The authors acknowledge the financial support of the Natural Sciences and Research Council of Canada (NSERC). The authors thank the Canadian Nuclear Laboratories staff for support of the in situ neutron diffraction experiments. As well, the authors are thankful to Alan Machin, Dr. Anthony Lombardi, and the members of the Centre for Near-net-shaped Processing of Materials (CNPM) at Ryerson University for assistance.
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Vandersluis, E., Elsayed, A., D’Elia, F. et al. Crystalline-Phase Solidification Analysis Using In Situ Neutron Diffraction. Trans Indian Inst Met 71, 2777–2781 (2018). https://doi.org/10.1007/s12666-018-1418-5
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DOI: https://doi.org/10.1007/s12666-018-1418-5