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Enhancing grain refinement efficiency and fading resistance of Al–B master alloys processed by equal channel angular pressing

Published online by Cambridge University Press:  23 April 2018

Kun Xia Wei ,
Yan Wei Zhang ,
Wei Wei Open the ORCID record for Wei Wei [Opens in a new window] ,
Xian Liu ,
Qing Bo Du ,
Igor V. Alexandrov  and
Jing Hu Open the ORCID record for Jing Hu [Opens in a new window]
Kun Xia Wei*
Affiliation:
School of Materials Science and Engineering, Changzhou University, Changzhou 213164, People’s Republic of China; Jiangsu Key Laboratory of Materials Surface Science and Technology, Changzhou University, Changzhou 213164, People’s Republic of China; Sino-Russia Joint Laboratory of Functional Nanostructured Materials, Changzhou University, Changzhou 213164, People’s Republic of China; and National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
Yan Wei Zhang
Affiliation:
School of Materials Science and Engineering, Changzhou University, Changzhou 213164, People’s Republic of China; Jiangsu Key Laboratory of Materials Surface Science and Technology, Changzhou University, Changzhou 213164, People’s Republic of China; and Sino-Russia Joint Laboratory of Functional Nanostructured Materials, Changzhou University, Changzhou 213164, People’s Republic of China
Wei Wei*
Affiliation:
School of Materials Science and Engineering, Changzhou University, Changzhou 213164, People’s Republic of China; Jiangsu Key Laboratory of Materials Surface Science and Technology, Changzhou University, Changzhou 213164, People’s Republic of China; Sino-Russia Joint Laboratory of Functional Nanostructured Materials, Changzhou University, Changzhou 213164, People’s Republic of China; and National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
Xian Liu
Affiliation:
School of Materials Science and Engineering, Changzhou University, Changzhou 213164, People’s Republic of China; Jiangsu Key Laboratory of Materials Surface Science and Technology, Changzhou University, Changzhou 213164, People’s Republic of China; and Sino-Russia Joint Laboratory of Functional Nanostructured Materials, Changzhou University, Changzhou 213164, People’s Republic of China
Qing Bo Du
Affiliation:
School of Materials Science and Engineering, Changzhou University, Changzhou 213164, People’s Republic of China; Sino-Russia Joint Laboratory of Functional Nanostructured Materials, Changzhou University, Changzhou 213164, People’s Republic of China; and National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
Igor V. Alexandrov*
Affiliation:
Department of Physics, Ufa State Aviation Technical University, 450008 Ufa, Russia; and National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
Jing Hu
Affiliation:
School of Materials Science and Engineering, Changzhou University, Changzhou 213164, People’s Republic of China; Jiangsu Key Laboratory of Materials Surface Science and Technology, Changzhou University, Changzhou 213164, People’s Republic of China; Sino-Russia Joint Laboratory of Functional Nanostructured Materials, Changzhou University, Changzhou 213164, People’s Republic of China; and National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
*
a)Address all correspondence to these authors. e-mail: benjamin.wwei@163.com
b)e-mail: igorvalexandrov@yandex.ru
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Abstract

An Al–3% B master alloy has been subjected to equal channel angular pressing (ECAP). The grain refining performance and fading resistance of an Al–3% B master alloy on a commercial purity Al (CPA) have been evaluated. The effect of the number of ECAP passes on the size and the distribution of the AlB2 particles, the grain size of CPA ingots with and without adding the Al–3% B master alloy subjected to ECAP have been investigated. The mean size of AlB2 particles was significantly reduced from ∼34 to ∼12 μm after four ECAP passes. Fine blocky AlB2 particles were uniformly distributed in the Al matrix. It has been revealed that when it was inoculated by the Al–B master alloy subjected to ECAP, the grain size of α-Al was decreased from ∼1200 to ∼180 μm after four ECAP passes, beyond that, the grain size tends to be saturated. It has been proved that grain refinement efficiency and fading resistance of the Al–3% B master alloy subjected to ECAP in CPA ingots was enhanced.

Keywords

commercial purity AlAl–B master alloyECAPgrain refinementfading resistance
Type
Article
Information
Journal of Materials Research , Volume 33 , Issue 12 , 28 June 2018 , pp. 1782 - 1788
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Copyright
Copyright © Materials Research Society 2018 

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References

REFERENCES

Metz, S.A. and Flemings, M.C.: A fundamental study of hot tearing. In Symposium on Solidification and Materials Processing, Flemings, C., ed. (TMS, Cambridge, MA, 2001); p. 181.Google Scholar
Zhang, H.H., Tang, X., Shao, G.J., and Xu, L.P.: Refining mechanism of salts containing Ti and B elements in purity aluminum. J. Mater. Process. Technol. 180, 60 (2006).Google Scholar
Easton, M. and StJohn, D.: Grain refinement of aluminum alloys: Part I. The nucleant and solute paradigms–A review of the literature. Metall. Mater. Trans. A 30, 613 (1999).Google Scholar
Wang, T.M., Chen, Z.N., Fu, H.W., Xu, J., Fu, Y., and Li, T.J.: Grain refining potency of Al–B master alloy on pure aluminum. Scripta Mater. 64, 1121 (2011).CrossRefGoogle Scholar
Alamdari, H.D., Dube, D., and Tessier, P.: Behavior of boron in molten aluminum and its grain refinement mechanism. Metall. Mater. Trans. A 44, 388 (2013).CrossRefGoogle Scholar
Zhang, M.X., Kelly, P.M., Easton, M.A., and Taylor, J.A.: Crystallographic study of grain refinement in aluminum alloys using the edge-to-edge matching model. Acta Mater. 53, 1427 (2005).CrossRefGoogle Scholar
Mohanty, P.S. and Gruzleski, J.E.: Mechanism of grain refinement in aluminium. Acta Mater. 43, 2001 (1995).CrossRefGoogle Scholar
Fan, Z., Wang, Y., Zhang, Y., Qin, T., Zhou, X.R., Thompson, G.E., Pennycook, T., and Hashimoto, T.: Grain refining mechanism in the Al/Al–Ti–B system. Acta Mater. 84, 292 (2015).CrossRefGoogle Scholar
Guzowski, M.M., Sigworth, G.K., and Sentner, D.A.: The role of boron in the grain refinement of aluminum with titanium. Metall. Trans. A 18, 603 (1987).CrossRefGoogle Scholar
Nafisi, S. and Ghomashchi, R.: Boron-based refiners: Advantages in semi-solid-metal casting of Al–Si alloys. Mater. Sci. Eng., A 452–453, 445 (2007).CrossRefGoogle Scholar
Birol, Y.: Production of Al–B alloy by heating Al/KBF4 powder blends. J. Alloys Compd. 481, 195 (2009).CrossRefGoogle Scholar
Han, Y.F. and Dai, Y.B.: First-principles calculations on Al/AlB2 interfaces. Appl. Surf. Sci. 257, 7831 (2011).CrossRefGoogle Scholar
Wang, T.M., Chen, Z.N., Fu, H.W., Gao, L., and Li, T.J.: Grain refinement mechanism of pure aluminum by inoculation with Al–B master alloys. Mater. Sci. Eng., A 549, 136 (2012).CrossRefGoogle Scholar
Kori, S.A., Murty, B.S., and Chakraborty, M.: Development of an efficient grain refiner for Al–7Si alloy and its modification with strontium. Mater. Sci. Eng., A 283, 94 (2000).CrossRefGoogle Scholar
Valiev, R.Z., Estrin, Y., Horita, Z., Langdon, T.G., Zehetbauer, M.J., and Zhu, Y.T.: Fundamentals of superior properties in bulk nanoSPD materials. Mater. Res. Lett. 4, 1 (2016).CrossRefGoogle Scholar
Zhang, Z., Watanabe, Y., Kim, I., Liu, X., and Bian, X.: Microstructure and refining performance of an Al–5Ti–0.25C refiner before and after equal-channel angular pressing. Metall. Mater. Trans. A 36, 837 (2005).Google Scholar
Zhang, Z., Hosoda, S., Kim, I., and Watanabe, Y.: Grain refining performance for Al and Al–Si alloy casts by addition of equal-channel angular pressed Al–5% Ti alloy. Mater. Sci. Eng., A 425, 55 (2006).CrossRefGoogle Scholar
Wei, W., Mao, R.Y., Wei, K.X., Alexandrov, I.V., and Hu, J.: Effect of equal channel angular pressing on microstructure and grain refining performance of Al–5% Ti master alloy. Mater. Sci. Eng., A 564, 92 (2013).CrossRefGoogle Scholar
Langdon, T.G., Furukawa, M., Nemoto, M., and Horita, Z.: Using equal-channel angular pressing for refining grain size. JOM 52, 30 (2000).CrossRefGoogle Scholar
Wang, X.: The formation of AlB2 in an Al–B master alloy. J. Alloys Compd. 403, 283 (2005).CrossRefGoogle Scholar
Greer, A.L., Bunn, A.M., Tronche, A., Evans, P.V., and Bristow, D.J.: Modelling of inoculation of metallic melts application to grain refinement of aluminium by Al–Ti–B. Acta Mater. 48, 2823 (2000).CrossRefGoogle Scholar
Easton, M.A. and StJohn, D.H.: Grain refinement of aluminum alloys: Part I. The nucleant and solute paradigms–A review of the literature. Metall. Mater. Trans. A 30, 1613 (1999).CrossRefGoogle Scholar
Easton, M.A. and StJohn, D.H.: An analysis of the relationship between grain size, solute content, and the potency and number density of nucleant particles. Metall. Mater. Trans. A 36, 1911 (2005).CrossRefGoogle Scholar
StJohn, D.H., Qian, M., Easton, M.A., and Cao, P.: The interdependence theory: The relationship between grain formation and nucleant selection,. Acta Mater. 59, 4907 (2011).CrossRefGoogle Scholar
Wang, F., Liu, Z.L., Qiu, D., Taylor, J.A., Easton, M.A., and Zhang, M.X.: Revisiting the role of peritectics in grain refinement of Al alloys. Acta Mater. 61, 360 (2013).CrossRefGoogle Scholar