International Journal of Academic Research and Development

International Journal of Academic Research and Development


International Journal of Academic Research and Development
International Journal of Academic Research and Development
Vol. 2, Issue 2 (2017)

Effect of zinc and nickel micro-additions on the structure and mechanical properties of tin-bronze (Cu-10%Sn) alloy


Osakwe FO, Nwaeju CC, Edoziuno FO

This research work investigated the effect of nickel and zinc micro-addition on the structure and mechanical properties of tin bronze (Cu-10%Sn alloy). The properties studied were tensile strength, percentage elongation using universal tensile machine (130812), impact strength using charpy machine (U1820) and hardness using Brinell hardness tester model B 3000(H). The specimens were prepared by doping 0.2 -1.0wt% of each of the element into Cu-10%Sn alloy at interval of 0.2 percent. The specimens were prepared according to BS 131-240 standard. Microstructural analysis was carried out using optical metallurgical microscope (L2003A) and scanning electron microscope (LEGALMU 11). Result obtained revealed that hardness, impact strength, %elongation and UTS of the alloy increased with increase in concentrations of zinc while only hardness and UTS increased with increase in concentration of nickel. Microstructural analysis revealed the primary α-phase and (α + δ) interdendtritic eutectoid phase and these phases gave rise to the enhanced mechanical properties. Tin bronze doped with nickel and zinc proved to increase mechanical properties and therefore are recommended for applications in engineering and allied industry.
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How to cite this article:
Osakwe FO, Nwaeju CC, Edoziuno FO. Effect of zinc and nickel micro-additions on the structure and mechanical properties of tin-bronze (Cu-10%Sn) alloy. International Journal of Academic Research and Development, Volume 2, Issue 2, 2017, Pages 29-35
International Journal of Academic Research and Development International Journal of Academic Research and Development