| LIN Ying,YAN Ying,WU Xue-wei,WU Si-min,ZHOU Hao,WU Lai-ming,CAI Lan-kun.Corrosion Development Behavior of Patinated Bronze Relics in the Environ-mental Simulation Media[J],46(2):46-51 |
| Corrosion Development Behavior of Patinated Bronze Relics in the Environ-mental Simulation Media |
| Received:October 20, 2016 Revised:February 20, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2017.02.007 |
| KeyWord:patinated bronze powdery rust potentiodynamic scanning |
| Author | Institution |
| LIN Ying |
East China University of Science and Technology, Shanghai , China |
| YAN Ying |
East China University of Science and Technology, Shanghai , China |
| WU Xue-wei |
East China University of Science and Technology, Shanghai , China |
| WU Si-min |
East China University of Science and Technology, Shanghai , China |
| ZHOU Hao |
Shanghai Museum, Shanghai , China |
| WU Lai-ming |
Shanghai Museum, Shanghai , China |
| CAI Lan-kun |
East China University of Science and Technology, Shanghai , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The work aims to study the corrosion development behavior of patinated bronze in 3 kinds of environment simulated solution. Corrosion features and phenomena of the samples were studied by means of potentiodynamic scanning, SEM-EDS, etc. In simulated atmospheric environmental medium, potential fell within 50~160 mV, the range of anodic polarization. Compared with other three bronze materials, the anode corrosion current density of bronzes covered with CuCl rust was the minimum; in simulated sea water environmental medium, the anode corrosion current density of patinated bronzes were all slightly greater than bare bronze; in simulated SO2 environmental medium, the Rp values of four bronze samples were all greater than that in atmospheric environment. In simulated atmospheric environmental medium, the CuCl patina was protective for bronze substrate at more negative potential; in simulated sea water environmental medium, patinated bronze had no protective effect on the substrate; in simulated SO2 environmental medium, the introduction of SO32 inhibited the corrosion of bronzes. The surface morphology and SEM-EDS analysis results show that, in the simulated SO2 environmental medium, pitting corrosion is present in bare bronze, CuCl patinated bronze and mixed patinated bronze, thus inhibiting the formation of powdery rust. |
| Close |
|
|
|