Volume 17, Issue 10 (2018)                   Modares Mechanical Engineering 2018, 17(10): 39-46 | Back to browse issues page

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honarpishe M, Mansouri H, Saki Entezami S. Investigation of ECAR process on the corrosion behavior of pure commercial copper. Modares Mechanical Engineering. 2018; 17 (10) :39-46
URL: http://mme.modares.ac.ir/article-15-2372-en.html
2- Faculty of Mechanical Engineering, University of Kashan, Kashan, Iran
3- Young Researchers and Elite Club, khorramabad branch, Islamic Azad University, khorramabad, Iran
Abstract:   (5793 Views)
Equal channel angular rolling process (ECAR) is one of the newest processes in the severe plastic deformation methods (SPD) that changes the mechanical properties of the sheet metal. In this study, the effects of ECAR process have been investigated on the corrosion behavior of the pure commercial copper samples. Five routs have been applied on the samples to investigate the mentioned parameters. Also, the corrosion rates were examined by the polarization and electrochemical impedance methods. The results show that the process has destructive effect on corrosion resistance of the samples. The results from SEM examination indicates that, with increasing the number of passes, the surface corrosion increases too and with increasing the passes pitting corrosion is clearly visible. Although with increasing the number of passes the uniformity of corrosion can be seen and positional mode is exited. Generally, the corrosion increases from the first pass to the second pass. Also, the more diameter and depth of corrosion is observed with increasing the pass number. The corrosion increase at the third pass and the corrosion type is pitting corrosion and uniform corrosion in the sample.
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Article Type: Research Article | Subject: Metal Forming
Received: 2017/06/10 | Accepted: 2017/09/2 | Published: 2017/09/29

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