Abstract Thermal-sprayed ceramic coatings are used worldwide to provide protection from corrosion and wear on components. Nevertheless, they exhibit very poor tribological performance in corrosive conditions, primarily because the high porosity and low cohesive strength, resulting in severe corrosion of metal materials and wear of coatings. Herein, a series of mullite coatings are deposited on the surface of titanium alloys under different deposition temperatures and the splats behavior, mechanical properties, corrosion and wear performance of mullite coatings are studied. Results show that adjusting the deposition temperature can modify the splats behaviors, improve the microstructure and degree of crystallinity and enhance the hardness and cohesive strength. Owing to the improvements, the specimens deposited at higher temperatures have the excellent anti-corrosion and wear-resistant ability.

中文翻译：

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沉积温度对莫来石涂层力学、腐蚀性和摩擦学性能的影响

摘要 热喷涂陶瓷涂层在世界范围内被广泛使用，以防止部件受到腐蚀和磨损。然而，它们在腐蚀条件下表现出非常差的摩擦学性能，主要是因为高孔隙率和低内聚强度，导致金属材料严重腐蚀和涂层磨损。本文在不同沉积温度下在钛合金表面沉积一系列莫来石涂层，研究了莫来石涂层的飞溅行为、力学性能、腐蚀磨损性能。结果表明，调整沉积温度可以改变飞溅行为，改善微观结构和结晶度，提高硬度和内聚强度。由于改进，