1.兰州理工大学 省部共建有色金属先进加工与再利用国家重点实验室，甘肃 兰州 730050;2.兰州理工大学 材料科学与工程学院，甘肃 兰州 730050;3.兰州理工大学 白银新材料研究院，甘肃 白银 730900
National Natural Science Foundation of China (No. 52261011); Industrial Support Program for Higher Education Institutions in Gansu Province (No. 2022CYZC-19); Gansu Province Key R&D Program Projects (No. 21YF5GD186)
1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China;2.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China;3.Baiyin New Materials Research Institute, Lanzhou University of Technology, Baiyin 730900, China
National Natural Science Foundation of China (52261011); Industrial Support Program for Higher Education Institutions in Gansu Province (2022CYZC-19); Gansu Province Key R&D Program Projects (21YF5GD186)
In order to study the differences in microstructure and mechanical properties of three kinds of electrodeposited cobalt plates, the preferred orientation, crystal structure, and microstructure of each plate were analyzed by X-ray diffractometer and scanning electron microscope. Furthermore, the mechanical properties of electrodeposited cobalt plates were tested, including their strength, hardness, and toughness. The results show that all of the plates are pure cobalt phases with a close-packed hexagonal structure (hcp) and random grain orientation. The deposition layer of the A-Co plate is uniform and dense with few holes, while those of the B-Co and C-Co plates grow apart and has a large number of holes. Meanwhile, the average grain size on the surface of the A-Co plate is the smallest, and the grain size distribution of the deposited layer is uniform, while that of the B-Co plate is the largest, and the grain size distribution of the deposited layer is not uniform. The starting sheets of the three electrodeposited cobalt plate cross-sections are all columnar crystal structures, and the growth patterns of the two sides of the starting sheets are different. From the analysis of mechanical properties, it is found that the tensile strength and hardness of the A-Co plate are higher than those of other two cobalt plates, but the toughness is lower. In conclusion, the quality of A-Co plates is significantly better than that of B-Co plates and C-Co plates.
徐仰涛,代靖民,裴亮,彭尹,杜海洋.电积钴板微观组织结构及力学性能对比[J].稀有金属材料与工程,2023,52(10):3387~3398.[Xu Yangtao, Dai Jingmin, Pei Liang, Peng Yin, Du Haiyang. Comparison of Microstructure and Mechanical Properties of Electrodeposited Cobalt Plates[J]. Rare Metal Materials and Engineering,2023,52(10):3387~3398.]