Preparation and characterization of Heat Treated Nickel Silver for marine applications

Authors

  • Santhosh A N  Asst. Prof. New Horizon College of Engineering, Bangalore, India
  • Aprameyan S  Professor. C Byregowda Institute of Technology, Kolar, India,

Keywords:

Nickel Silver, Corrosion, Heat Treatment, Microstructure

Abstract

Copper is one of the first metal ever extracted and used by humans. As a result, copper was important to early humans and continues to be a material of choice for a variety of domestic, industrial, and high technology applications even today. Copper–nickel-Zinc (Nickel silver) is one of the alloys of copper. Nickel silvers are widely used materials for utility in marine and chemical environments for ship and boat hulls, desalination plants, Heat exchangers, seawater and hydraulic pipelines, oil rigs and platforms, fish farming cages, seawater consumption displays etc. because of their superior corrosion resistance, higher electric conductivity, heat conductivity and mechanical properties. A variety of nickel silvers of different compositions have found in commercial use, with most ranging from 20% to 30% of copper and 5% to 10% of zinc by weight, the remaining mass being copper. However, the varying percentages of Copper, Nickel, Zinc and other alloying elements may lead to a large difference in microstructure and performance of Nickel silver. Heat treatment of these alloys is always a challenge to make the material to suit for a particular application. Moreover, there is always a scope for study of processes which enhances the properties of material. In the present investigation specimens of nickel silver were prepared with 30%Ni & 5% Zn and 25Ni & 5% Zn. The prepared specimens were subjected to solutionizing followed by aging heat treatment at 350°C & 450°C for 1 hr. and hardening followed by tempering heat treatment at 500°C & 600°C for 1hr. respectively for first and second compositions. Different experiments were conducted and concluded with the findings of study and provided with suitable recommendations for future studies.

References

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Published

2019-12-30

Issue

Section

Research Articles

How to Cite

[1]
Santhosh A N, Aprameyan S, " Preparation and characterization of Heat Treated Nickel Silver for marine applications" International Journal of Scientific Research in Computer Science, Engineering and Information Technology(IJSRCSEIT), ISSN : 2456-3307, Volume 4, Issue 9, pp.805-808, November-December-2019.