CORROSION BEHAVIOR OF CU-AL-BE SHAPE MEMORY ALLOYS IN FRESH WATER, SEA WATER AND HANKS SOLUTION

Authors

  • Prashantha S Asst.Prof. Department of Mechanical Engineering, Siddaganga Institute of Technology, Tumkur572 103, Karnataka, India Author
  • Shivasiddaramaiah.A.G Asst.Prof. Department of Mechanical Engineering, Siddaganga Institute of Technology, Tumkur572 103, Karnataka, India Author
  • U S Mallikarjun Prof. Department of Mechanical Engineering, Siddaganga Institute of Technology,Tumkur-572 103,Karnataka, India Author
  • S M Shashidhara Dean(S.W), Sridevi Institute of Engg. & Technology, Tumkur-572 106, Karnataka, India Author

Keywords:

Shape Memory Alloys, Shape Memory Effect, corrosion tests, Corrosion Behavior, Intergranular corrosion.

Abstract

Ternary alloy of CU-Al-Be (80-90 % Cu, 8-10 % Aluminum & 0.1-0.5 % Beryllium) was prepared using ingot metallurgy route. The prepared alloys were tested for its SME using Bend test. The corrosion behavior of the SMA investigated in various corrosion media. It was observed that the alloy undergoes Intergranular corrosion. The addition of little amount of beryllium was effective to reduce the intergranular corrosion. It was found that, the small amount of beryllium addition prevents the intergranular corrosion which is possibly due to the diffusion of beryllium atoms into grain boundaries, which in turn deactivates the grain boundaries

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Published

2017-03-31

Issue

Vol. 4 No. 13 (2017): ICAMS- 2017

Section

Articles