材料科学
涂层
合金
陶瓷
腐蚀
冶金
图层(电子)
微观结构
复合材料
压痕硬度
激光器
等离子体
光学
物理
量子力学
作者
Yali Gao,Cunshan Wang,Man Yao,Hongbin Liu
标识
DOI:10.1016/j.apsusc.2006.12.001
摘要
The paper presents a study on the preparation of Al2O3 ceramic coating on AZ91HP Mg alloy by laser remelting plasma-sprayed coating. It was found that after laser remelting, the coating exhibited obvious layer-like characteristics due to influence of temperature distribution, thermophysical parameters and layer thickness. According to the microstructural difference, the coating can be divided into the melted zone with the α-Al2O3 column-like crystal, the sintered zone with flock-like structure, the residual plasma-sprayed zone with loosened structure. Because of the dense column-like crystal, the hardness, wear and corrosion resistance of the laser remelted coating are much higher than those of the plasma-sprayed coating and as-received Mg alloy.
科研通智能强力驱动
Strongly Powered by AbleSci AI