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Corrosion properties of laser surface melted NiTi shape memory alloy |
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| Authors: | H. C. Man Z. D. Cui T. M. Yue |
| Affiliation: | Department of Manufacturing Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong |
| Abstract: | A Nd-YAG laser was used to melt the surface of NiTi shape memory alloy in air and argon environment respectively. The laser surface melted (LSM) layer is free of porosity and crack. The corrosion resistance of the LSM specimen in 3%NaCl solution has been improved significantly and is attributed to the increased amount of TiO2 and Ti/Ni ratio on the surface. |
| Keywords: | Laser surface melting Nickel Titanium Shape memory Corrosion |
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