Study on Al-Zn-In Alloy as Sacrificial Anodes in Seawater Environment     

WANG Huanhuan  DU Min  LIANG Hu  GAO Qingyang 《中国海洋大学学报(英文版)》2019,(4)

Electrochemical properties including conventional electrochemical properties: open circuit potential, polarization potential, electrochemical capacity, morphology of surface dissolution, and the initial polarization properties of Al-Zn-In-Mg-Ti and Al-Zn-In-Si sacrificial anodes are investigated in the sea. The curves of anode output current and work potential with time, the impact of area ratio of cathode to anode on anode output current is discussed, and the initial polarization properties are investigated with cyclic voltammetry(CV) finally. The results show that for the two anodes, the current efficiency got in the sea environment is higher than the data of the 4-day-accelerated test in laboratory and the corrosion morphology is more uniform in the sea. With the same exposed area, the current efficiency of Al-Zn-In-Mg-Ti anode is higher than that of Al-Zn-In-Si in the sea. For both anodes, the current efficiency becomes larger with the increase of the area ratio of cathode to anode. The two anodes can output larger current in strong polarization state. The situation is consistent with the results that small area anode released higher current in the sea trial. The difference rests with that Al-Zn-In-Mg-Ti anode output far greater current than that of the Al-Zn-In-Si under the same polarization potential. The initial polarization property of the Al-Zn-In-Mg-Ti anode is better than Al-Zn-In-Si anode.  相似文献   

新疆车师古道地质遗迹类型及景观资源评价     

赵起  弓小平  许庆阳  杨洋  魏杰  王哲  风骏 《城市地质》2021,16(2):211-220

泉子街车师古道地质遗迹位于吉木萨尔县,该地区由于特殊的地质构造、地理位置、环境气候,发育了多种类型的地质遗迹.车师古道地质遗迹的类型可分为3大类、10类、20亚类,以地质遗迹的类型为依据,总结了研究区内地质遗迹的特征.采用层次分析法定量评价地质遗迹景观资源,评价结果:Ⅱ级地质遗迹共有8个,Ⅲ级97个,Ⅳ级68个.在地质...  相似文献