Influence of the Concentration of Tellurium in Tlie Hardening Mechanism of the Lead-Tellurium Alloys for Battery Grids

Influence of the Concentration of Tellurium in Tlie Hardening Mechanism of the Lead-Tellurium Alloys for Battery Grids

Abdellah Aguizir Elhassan Zantalla Youssef Ait Yassine Najim Selhaoui Lahcen Bouirden 

Laboratoire Dc Tliermodynamique et Energétique, Faculté des Sciences, Agadir, BP 8106, Morocco

Page: 
121-129
|
DOI: 
https://doi.org/10.3166/acsm.40.121-129
Received: 
29 November 2016
|
Accepted: 
22 December 2016
|
Published: 
31 January 2017
| Citation

OPEN ACCESS

Abstract: 

This work is dedicated to the influence of the concentration of tellurium on structural hardening mechanisms binary alloys PbTe, in the following amounts by weight Pb0,003wt%Te; Pb0,005wt%Te and Pb0,0062wt%Te that leads to solid solutions supersaturated in Tellurium .The equilibration of supersatured alloys has been followed by different techniques, the hardness, microhardness measurements, optical , electron microscopy and microanalysis EDAX . Two structural states arc considered: as-cast alloys and rehomogeneization. The explored temperatures are 20° and 80°C The aging of lead-tellurium alloys is characterized by a continuous precipitation and discontinuous transformation. As for their overaging they arc concerned by a discontinuous lamellar precipitation localized around the grain boundaries, we note that the maximum hardness obtained docs not exceed 8 Hv whatever the structural state of the alloy studied.

1. Introduction
2. Conditions Experimentales
3. Results and Discussion
4. Conclusion
  References

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