Abstract
Iron is one of the unwanted impurities in Al-Si alloys owing to its detrimental influence on the ductility. This work deals with developing a new Al-13Si alloy with high Fe concentration, without significant decrease in its ductility. The formation of the detrimental Fe-rich intermetallics was controlled with the addition of Ni with subsequent heat treatment. Tensile testing, electron microscopy and fractography studies conducted on the alloys confirmed that the detrimental effect of Fe can be suppressed through the evolution of Ni containing Fe-rich intermetallics. Fractography studies confirmed that the heat-treated alloys containing Ni have better ductility than their as-cast counterparts.
This is a preview of subscription content, access via your institution.
References
G. Marina, C. Li, A. Arnold, and B. Friedrich, Metals 8(10), 796. https://doi.org/10.3390/met8100796 (2018).
L. Zhang, and L.N. Damoah, Current technologies for the removal of iron from aluminum alloys, in Essential Readings in Light Metals. ed. by J.F. Grandfield, and D.G. Eskin (Springer, Cham, 2016), pp. 101–106. https://doi.org/10.1007/978-3-319-48228-6_13.
B. Mathai, C. Mathew, K. Pratheesh, and C.K. Varghese, Int. J. Eng. Trends Tech., 29(6), 299–303 (2015) ISSN:2231-5381.
G. Gaustad, E. Olivetti, and R. Kirchain, Resources Conserv. Recycl. 58, 79. (2012).
N.A. Belov, A.A. Aksenov, and D.G. Eskin: Iron in Aluminium Alloys: Impurity and Alloying Element (CRC Press, Boca Raton, 2002). ISBN 9780415273527, pp. 57–59.
S.G. Shabestari, Mater. Sci. and Eng. 383A(2), 289. (2004).
W.S. Ebbota and T.C. Jen: Effects of Modification Techniques on Mechanical Properties of Al-Si Cast Alloys, Aluminium Alloys: Recent Trends in Processing, Characterization, Mechanical Behavior and Applications, (Subbarayan Sivasankaran, IntechOpen) https://doi.org/10.5772/intechopen.70391.
C.B. Basak, and N. Hari Babu, Improved recyclability of cast Al-alloys by engineering β-Al9Fe2Si2 phase, in Light Metals 2017: The Minerals, Metals & Materials Series. ed. by A. Ratvik (Springer, Cham, 2017).
M.J.S. Mohamed, Int. J. Sci. Res. 4, 781. (2015).
N.E. Nwankwo, V.U. Nweke, and E.E. Nnuka, Int. J. Sci. Res. Eng. Tech., 1(2) (2015), ISSN (Online): 2395-566X.
C.B. Basak, A. Meduri, and N. Hari Babu, Mater. Des. 182, 108017. (2019).
A.K. Prasada Rao, W.Q. Ain, and M.K. Faisal, Metallogr. Microstruct. Anal. 7, 239. (2018).
L.F. Mondolfo, Aluminium Alloys: Structure and Properties (Butterworths, Lindon, 1976), pp 532–663.
Acknowledgement
We acknowledge the support and help of the staff at Samkrg Pistons and Rings Pvt Ltd, Hyderabad, by providing their facilities for preparation of alloys used for the present work; their help is valued and appreciated. We also acknowledge Prof. Lalit Sharma and the staff of the Center for Advanced Materials and Sciences, BML Munjal University, for their assistance in performing scanning electron microscopy.
Author information
Authors and Affiliations
Ethics declarations
Conflict of interest
On behalf of all authors, the corresponding author states that there is no conflict of interest.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Kaja, S.S.T., Gangadasari, P.R. & Ayyagari, K.P.R. Extending the Tolerance of Iron in Cast Al-Si Alloy. JOM 73, 2652–2657 (2021). https://doi.org/10.1007/s11837-021-04803-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11837-021-04803-x