Type AISI 316 L Stainless Steel (316 L SS) plays a crucial role in bone replacement surgery due to its excellent mechanical features, availability at low cost, and ease of fabrication, but its performance is low when in contact with the aggressive conditions of the human body fluids. Chitosan (CTS) is a biopolymer that blended with hydroxyapatite (HAp) could form coatings to improve surface properties of a metallic orthopedic prosthesis, i.e., corrosion-resistance to the base metal and biocompatibility of the ceramic on the metal surface. This work aims to obtain and evaluate HAp/CTS composite coatings deposited on the surface of AISI 316 L SS substrate by electrophoretic deposition (EDP) technique. The influence of the time of deposition on the coating’s characteristics and properties was characterized and discussed. The coatings were structural, elemental, and chemically characterized using X-Ray diffraction and Raman spectroscopy. HV values in a range of 64.7 to 111.5 were observed, showing the lowest HAp/CTS-30.0 coating values for all the loads applied. The lowest HV value was nearby to the reported value for human bone’s hardness, around 47HV; considering that the coating will be in constant contact motion with the bone surface, the contact with a softer surface could decrease the wear on the human bone. The hardness decreases with the coating thickness’s increment because the coating presented a higher plastic deformation than the 316 L SS surfaces. A decrease in the roughness average (R_a) was well noticed as the deposition time increased; meanwhile, the thickness increased as the deposition time increased.

AISI 316 L 型不锈钢 (316 L SS) 由于其优异的机械特性、低成本的可用性和易于制造而在骨置换手术中发挥着至关重要的作用，但在与骨的侵蚀性条件接触时其性能较低人体体液。壳聚糖 (CTS) 是一种与羟基磷灰石 (HAp) 混合的生物聚合物，可以形成涂层以改善金属矫形假体的表面性能，即对贱金属的耐腐蚀性和金属表面陶瓷的生物相容性。本工作旨在通过电泳沉积 (EDP) 技术获得和评估沉积在 AISI 316 L SS 基材表面的 HAp/CTS 复合涂层。表征和讨论了沉积时间对涂层特性和性能的影响。涂层是结构性的，元素，并使用 X 射线衍射和拉曼光谱进行化学表征。观察到 64.7 到 111.5 范围内的 HV 值，显示所有施加的负载的最低 HAp/CTS-30.0 涂层值。最低 HV 值接近报告的人体骨骼硬度值，约为 47HV；考虑到涂层将与骨骼表面持续接触运动，与较软的表面接触可以减少对人体骨骼的磨损。硬度随着涂层厚度的增加而降低，因为涂层呈现出比 316 L SS 表面更高的塑性变形。粗糙度平均值（R 0 涂层值适用于所有施加的载荷。最低 HV 值接近报告的人体骨骼硬度值，约为 47HV；考虑到涂层将与骨骼表面持续接触运动，与较软的表面接触可以减少对人体骨骼的磨损。硬度随着涂层厚度的增加而降低，因为涂层呈现出比 316 L SS 表面更高的塑性变形。粗糙度平均值（R 0 涂层值适用于所有施加的载荷。最低 HV 值接近报告的人体骨骼硬度值，约为 47HV；考虑到涂层将与骨骼表面持续接触运动，与较软的表面接触可以减少对人体骨骼的磨损。硬度随着涂层厚度的增加而降低，因为涂层呈现出比 316 L SS 表面更高的塑性变形。粗糙度平均值（R 硬度随着涂层厚度的增加而降低，因为涂层呈现出比 316 L SS 表面更高的塑性变形。粗糙度平均值（R 硬度随着涂层厚度的增加而降低，因为涂层呈现出比 316 L SS 表面更高的塑性变形。粗糙度平均值（R_a ) 随着沉积时间的增加而被很好地注意到；同时，厚度随着沉积时间的增加而增加。