| METALS AND METAL MATRIX COMPOSITES |
|
|
|
|
|
| Effect of Scanning Speed on Corrosion Resistance of CeO2/Ni60A Coating Prepared by Laser Cladding |
| GONG Yuling1,2, WU Meiping2,*, MIAO Xiaojin2, CUI Chen2
|
1 School of Shipping and Mechatronic Engineering, Taizhou University, Taizhou 225300, Jiangsu, China
2 School of Mechanical Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China |
|
|
|
|
Abstract The effect of scanning speed on the forming quality and corrosion resistance of laser cladding CeO2/Ni60A composite coating was studied in this work. Four kinds of coatings with different scanning speeds (8 mm/s, 12 mm/s, 16 mm/s and 20 mm/s) were prepared on TC4 surface by coaxial powder feeding technology. The geometric characteristics, microstructure and electrochemical corrosion resistance of the coating were observed. The results show that the Marangoni convection effect is affected by the scanning speed, and the hard phases in the coating are mainly composed of TiB2 and TiC. The decrease of the size of TiB2 is conducive to the growth and precipitation of TiC. When the scanning speed is 20 mm/s, the element segregation in the coating is serious, which reduces the uniformity of element distribution. The density of the passive film on the coating surface is low, and it tends to be broken down by applied voltage. When the scanning speed is 12 mm/s, the density of the passive film on the surface of the coating is higher, and the electrochemical corrosion resistance is higher, which means the self-healing effect of the passive film is remarkable. CeO2/Ni60A composite coating with high forming quality and excellent corrosion resistance can be obtained by selecting the scanning speed of 12 mm/s.
|
|
Received: 25 September 2022
Published: 25 September 2022
Online: 2022-09-26
|
|
|
| Fund:Scientific Research Project of Taizhou University (TZXY2020ZDKT002), Jiangsu Province Mechanical and Electrical Products Recycling Technology Key Construction Laboratory Open Fund Project (RRME201902), the 13th FiveYear Program for the Integration Between Industry and Education of Taizhou (2018TZCJ002), and Science and Technology Support Plan (Social Development) Project of Taizhou (TN202134). |
|
|
1 Xiao G Z. Steel Pipe, 2018, 47(2), 9(in Chinese).
肖国章. 钢管, 2018, 47(2), 9.
2 Sunaba T, Ito T, Miyata Y, et al. Corrosion, 2014, 70(10), 988.
3 Ye F X, Shao W X, Ye X C, et al. Journal of Chemistry, 2020, 2020, 8690428.
4 Bai Y, Wang Z H, Zuo J J, et al. Chinese Journal of Lasers, 2020, 47(10), 1002001(in Chinese).
白杨, 王振华, 左娟娟, 等. 中国激光, 2020, 47(10), 1002001.
5 Xu R H, Li X F, Zuo D W, et al. Rare Metals, 2014, 38(5), 807(in Chinese).
许瑞华, 黎向锋, 左敦稳, 等. 稀有金属, 2014, 38(5), 807.
6 Zhao S J, Qi W J, Huang Y H, et al. Surface Technology, 2020, 49(2), 301(in Chinese).
赵盛举, 祁文军, 黄艳华, 等. 表面技术, 2020, 49(2), 301.
7 Li J N, Chen C Z, Zhang C F. Bulletin of Materials Science, 2012, 35(3), 399.
8 Chen Q, Guillemot G, Gandin C A, et al. Additive Manufacturing, 2018, 21, 713.
9 Hamaguchi K, Hoashi E, Okita T, et al. Fusion Engineering and Design, 2019,140, 117.
10 Liang J, Yin X Y, Lin Z Y, et al. Surface & Coatings Technology, 2020, 403, 126409.
11 Liu Y N, Yang L J, Yang X J, et al. Ceramics International, 2021, 47(2), 2230.
12 Farahmand P, Liu S, Zhang Z, et al. Ceramics International, 2014, 40(10), 15421.
13 Tang B H, Tan Y F, Zhang Z W, et al. Coatings, 2020, 10(1), 76.
14 Martin O, De Tiedra P, Garcia C, et al. Corrosion Science,2012,54,119.
15 Xie G Z, Song X L, Zhang D J, et al. Applied Surface Science, 2010, 256(21), 6354.
16 Xu W, Chen M, Lu X, et al. Corrosion Science, 2020, 168, 108557.
17 Rosalbino F, Maccio D, Scavino G, et al. Journal of Materials Science-Materials in Medicine, 2012, 23(4), 865.
18 Schulz C, Schlafer T, Plowman J, et al. JOM, 2020, 72(12), 4624.
19 Rajaguru J, Arunachalam N. Corrosion Science, 2018, 141, 230.
20 Tian Z H, Zhao Y T, Jiang Y J, et al. Journal of Materials Science, 2020, 55(10), 4478. |
|
|
|
渝公网安备50019002502923号 © Editorial Office of Materials Reports.
2022, Vol. 36 
