Corrosion Behavior of Cu-Zn-Ni Shape Memory Alloys

S. Sathish, U. S. Mallik, T. N. Raju

Department of Mechanical Engineering, Dr. Ambedkar Institute of Technology, Bangalore, India.
Department of Mechanical Engineering, Siddaganga Institute of Technology, Tumkur, India.

DOI: 10.4236/jmmce.2013.12010                

Abstract

Four shape memory alloys of Cu-Zn-Ni, in the range of 35-55 wt% of Cu, 43-60 wt% Zn and 2-9 wt% Ni, were prepared by ingot metallurgy route in an induction furnace under an inert atmosphere. The shape memory effect was tested by bend test. The alloys were further tested for its corrosion behavior in fresh water, Hank’s solution and sea water. From the results it was observed that the alloys exhibit high corrosion resistance in fresh water when compared to Hank’s solution and sea water. And it was also observed that the alloys exhibit better corrosion resistance in Hank’s solution than in sea water.

Keywords

Shape Memory Alloys; Shape Memory Effect; Corrosion

Conflicts of Interest

The authors declare no conflicts of interest.

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