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| Effect of Surface Shot Peening on Corrosion Resistance of Aermet100 Steel |
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| DOI：10.7643/issn.1672-9242.2023.02.010 |
| KeyWord:corrosion resistance surface peening A100 steel morphology characteristics polarization curve |
| Author | Institution |
| WEI Zi-lin |
Qingdao Campus of Naval Aviation University, Shandong Qingdao , China |
| BIAN Gui-xue |
Qingdao Campus of Naval Aviation University, Shandong Qingdao , China |
| WANG An-dong |
Qingdao Campus of Naval Aviation University, Shandong Qingdao , China |
| ZHANG Yong |
Qingdao Campus of Naval Aviation University, Shandong Qingdao , China |
| YANG Wen-fei |
Qingdao Campus of Naval Aviation University, Shandong Qingdao , China |
| WU Xing-jun |
Qingdao Campus of Naval Aviation University, Shandong Qingdao , China |
| CHEN Yue-liang |
Qingdao Campus of Naval Aviation University, Shandong Qingdao , China |
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| Abstract: |
| The work aims to investigate the effect of surface shot peening on the corrosion resistance of Aermet100 steel. By means of microscopic observation, electrochemical measurement and XRD analysis, the neutral salt spray test was carried out to the A100 steel specimens before and after shot peening. In terms of the corrosion morphology, the corrosion surfaces of two kinds of specimens firstly obtained reddish-brown material which then turned reddish-brown and green flocculent, and the time difference for these changes was about one cycle. With the increase of corrosion time, the XRD peaks shifted to the right, and the XRD results of the two kinds of specimens changed obviously at 144 h. The electrochemical results of neutral salt spray test were different from those under marine environment in solution resistance, corrosion product resistance and corrosion reaction resistance. The self-corrosion potential was slightly lower, while the self-corrosion current was two orders of magnitude lower. The corrosion laws of the two kinds of specimens are consistent and the XRD diffraction peak shifts to the right, indicating that the lattice parameters of specimens become smaller. The corrosion rates of the two kinds of specimens show a trend of increasing, slowing down and then increasing. Shot peening can obviously improve the corrosion resistance of A100 steel. |
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