EFFECT OF ANTIMONY ADDITION RELATIVE TO MICROSTRUCTURE AND MECHANICAL PROPERTIES OF CONTINUOUS CAST LEAD ALLOY

1 Bagherian Ehsaan-Reza
Co-authors:
2 FAN Yongchang 2 Cooper Mervyn 2 Frame Brian 1 ABDOLVAND Amin
Institutions:
1 School of Science & Engineering, University of Dundee, Dundee, Scotland, United Kingdom, EU, e.bagherian@dundee.ac.uk, y.fan@dundee.ac.uk, A.Abdolvand@dundee.ac.uk
2 Rautomead Ltd, Dundee, Scotland, United Kingdom, EU, Mervyn.Cooper@rautomead.com, Brian.Frame@rautomead.com
Conference:
25th Anniversary International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 25th - 27th 2016
Proceedings:
Proceedings 25th Anniversary International Conference on Metallurgy and Materials
Pages:
1294-1300
ISBN:
978-80-87294-67-3
ISSN:
2694-9296
Published:
14th December 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
71 views / 16 downloads
Abstract

It is well documented that the addition of antimony in pure lead increases tensile strength and reduced elongation. The goal of the present work is to identify the cause of these phenomena by investigation of the effects of the addition of Sb (1.25 wt.%) on the structure of pure continuously cast lead and lead alloy rods. The microstructure and morphology of both pure lead and lead with 1.25 wt.% antimony were examined by digital optical microscope and scanning electron microscope respectively. Energy Dispersive X-ray Spectroscopy (EDX) was used to identify alloying elements. The results showed that the effect of additions of antimony on mechanical properties of lead-antimony alloys is mainly due to the solid solubility of the antimony. Distribution of the antimony results in a decrease in the grain size of the pure lead. These smaller grains mean higher strength so long as there is a homogeneous grain structure

Keywords: Continuous casting, lead, lead-antimony alloy, oscillation mark, metallography, SEM/EDX

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