Abstract
In comparison with mainstream Al-Si alloys for structural die-casting components for automotive applications, Nemalloy HE700 (Al-Fe(Zn,Mg)) offers higher strength-to-weight ratio and elongation even without heat treatment. It is a newly developed Al-Fe hypoeutectic-based alloy with Zn and Mg additions serving as precipitation strengtheners. This study aims to determine the effect of Zn content on the microstructure and attendant mechanical properties of HE700. Alloy variations were casted as plates with three different thicknesses using high-vacuum high-pressure die casting with four different weight percentages (5%, 6.25%, 7.5%, and 8.75%) of Zn and a fixed weight percentage of Mg (1%). Mechanical properties were determined using uniaxial tensile measurements as a function of natural ageing time out to 14 days. It is observed that as zinc content increases, the electrical conductivity increases and hardness decreases. Alloy with 6.25% Zn showed better elongation (13.5%) compared to the other alloys at the end of 14 days of natural ageing but Alloy with 8.75% Zn shows better yield strength (218 MPa).
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Lombardi A, Byczynski G, Wu C, Zeng X, Shankar S, Birsan G, Sadayappan K (2019) Development of high ductility Al-Zn-Mg casting alloys for automotive structural components. MS and T:1049–1056
Aziz T, Phillion A, Shankar S, Sadayappan K (2022) Understanding pre-solidified grains in structural castings of Nemalloy HE700 experiments, Minerals, metals and materials series. Springer, Cham, pp 148–155. https://doi.org/10.1007/978-3-030-92529-1_20
Wu C, Zeng X, Shankar S, Birsan G, Sadayappan K, Lombardi A, Byczynski G (2018, October) Microstructure and uniaxial tensile properties of heat treatable Al-Zn alloy for structural HPDC components. In: NADCA Die Casting Congress, Indianapolis, Indiana, pp 15–17
Yaghi PB, Shankar S, Birsan G, Sadayappan K, Lombardi A, Byczynski G (2021) Al-Fe based eutectic alloy for automotive structural castings. North American Die Casting Association (NADCA). p. 110
Acknowledgements
The project was supported by the Collaborative Research and Development grant from the Natural Sciences and Engineering Research Council of Canada (NSERC). The high-pressure die casting trials at CanmetMATERIALS was supported by Program on Energy R&D (PERD) of NRCAN.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2023 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Abraham, A. et al. (2023). Effect of Zn Content on the Mechanical Properties of Nemalloy–Al-Fe(Zn, Mg) Alloys for Automotive Applications. In: Proceedings of the 62nd Conference of Metallurgists, COM 2023. COM 2023. Springer, Cham. https://doi.org/10.1007/978-3-031-38141-6_45
Download citation
DOI: https://doi.org/10.1007/978-3-031-38141-6_45
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-38140-9
Online ISBN: 978-3-031-38141-6
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)