Effect of rapid solidification and calcium additions on Sn-38 wt.%Pb-6 wt.%Sb melt-spun alloys

Authors

  • Rizk Mostafa Shalaby Metal Physics Laboratory, Physics Department, Faculty of Science, Mansoura University, Mansoura, Egypt, P. O. Box: 35516.
  • Shalabia Badr Physics Department, Faculty of Science, Mansoura University, Mansoura, Egypt
  • Nermin Ali Abdelhakim Metal Physics Laboratory, Physics Department, Faculty of Science, Mansoura University, Mansoura, Egypt, P. O. Box: 35516.
  • Mustafa Kamal Metal Physics Laboratory, Physics Department, Faculty of Science, Mansoura University, Mansoura, Egypt, P. O. Box: 35516.

DOI:

https://doi.org/10.24297/jap.v11i5.6837

Keywords:

Melt-spun process, mechanical properties, electrical resistivity, micro-hardness

Abstract

The effect of calcium additions on the structure and physical properties of melt-spun process Sn-38Pb-6Sb alloys have been experimentally investigated at a solidification rate of ~105 K/s. Structure, internal friction, elastic moduli, microhardness and electrical resistivity of the Sn-38%Pb , Sn-38%Pb -6%Sb , Sn-38%Pb -6%Sb-0.5%Ca , Sn-38%Pb -6%Sb -1%Ca , Sn-38%Pb -6%Sb -1.5%Ca , Sn-38%Pb -6%Sb -2%Ca , Sn-38%Pb -6%Sb -2.5%Ca (in wt%) rapidly solidified alloys are investigated. The results showed that the mechanical and electrical properties values are enhanced for ternary Sn-38%Pb -6%Sb alloy. The examined mechanical and electrical conductivity decreased by addition of calcium content in the studied alloys. It also leads to with increasing Ca content the SnSb inter-metallic compound (IMC) precipitates are increased in the Sn matrix. The results were explained in terms of the dislocation theory, effect of quenching rate on the produced density fluctuations in composition and the modes of interaction of crystal lattice defects.

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Published

2015-12-28

How to Cite

Shalaby, R. M., Badr, S., Abdelhakim, N. A., & Kamal, M. (2015). Effect of rapid solidification and calcium additions on Sn-38 wt.%Pb-6 wt.%Sb melt-spun alloys. JOURNAL OF ADVANCES IN PHYSICS, 11(4), 3224–3235. https://doi.org/10.24297/jap.v11i5.6837

Issue

Vol. 11 No. 4 (2015)

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Articles

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