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| Title: | Investigations on the influence of surface mechanical attrition treatment on the corrosion behaviour of friction stir welded NiTi shape memory alloy |
| Authors: | Mani Prabu, S. S. Manikandan, M. Joshi, Manoj D. Hosmani, Santosh Sattappa Palani, Anand Iyamperumal |
| Keywords: | Binary alloys;Corrosion rate;Corrosive effects;Electrochemical corrosion;Electrochemical impedance spectroscopy;Friction;Nickel metallography;Shape-memory alloy;Surface treatment;Titanium alloys;Titanium metallography;Breakdown potential;Corrosion behaviour;Corrosion property;Friction stir;NiTi shape memory alloys;Oxide layer;Potentiodynamic polarization tests;Surface mechanical attrition treatments;Friction stir welding |
| Issue Date: | 2020 |
| Publisher: | Elsevier B.V. |
| Citation: | Prabu, S. S. M., Perugu, C. S., Jangde, A., Madhu, H. C., Manikandan, M., Joshi, M. D., . . . Palani, I. A. (2020). Investigations on the influence of surface mechanical attrition treatment on the corrosion behaviour of friction stir welded NiTi shape memory alloy. Surface and Coatings Technology, 402 doi:10.1016/j.surfcoat.2020.126495 |
| Abstract: | The surface mechanical attrition treatment (SMAT) was applied to friction stir welded NiTi shape memory alloy (SMA) as a post welding treatment to improve the corrosion properties of the weld. The influence of SMAT on corrosion behaviour of friction stir welded NiTi alloy was studied by employing electrochemical impedance spectroscopy and potentiodynamic polarization tests. The SMAT process has improved the corrosion properties of the welded NiTi alloy. Notably, the 1 h SMAT has shown the lowest corrosion rates and its oxide layer exhibited the highest resistance. The 1.15 h SMAT sample has exhibited a noblest breakdown potential of 1331 mV among other samples. © 2020 Elsevier B.V. |
| URI: | https://doi.org/10.1016/j.surfcoat.2020.126495 https://dspace.iiti.ac.in/handle/123456789/7474 |
| ISSN: | 0257-8972 |
| Type of Material: | Journal Article |
| Appears in Collections: | Department of Metallurgical Engineering and Materials Sciences |
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