Increasing the mechanical characteristics of the disc harrow component by APS thermal coatings

The atmospheric plasma spray deposition technique (APS) is globally recognized as a novel approach for producing protective coatings on surfaces subjected to harsh conditions. This enhances usability, mechanical properties, and corrosion resistance. This study presents a comparative analysis of three coating types: W2C/WC12Co (Metco71NS), Cr2O34SiO23TiO (Metco136F), and Co25.5Cr10.5Ni7.5W0.5C (Metco45C-NS), all deposited under similar parameters utilizing Sulzer Metco 9MCE equipment with a 9MB series gun on a highly stressed agricultural component: disc harrow. The coatings enhance the durability of agricultural components, particularly their wear resistance. The inclusion of carbides and powdered ceramic compounds will enhance these characteristics. Consequently, this study has concentrated on the scanning electron microscopy of the coated samples and their tribological properties. SEM imaging and EDS analysis will be conducted to clarify the morphological characteristics and cross-section. Tribological tests will be conducted to identify substrate adhesion, coefficient of friction, modulus of elasticity, and hardness. Advancement and incorporation of modern technologies to enhance the mechanical and chemical properties of coated disc harrow disc materials will result in increase resistance to abrasive wear especially for agricultural applications.

Acknowledgment: ”This work was supported by a grant of Ministery of Research, Innovation and Digitization, CNCS-UEFISCDI, project number PN-IV-P8-8.3-ROMD-2023-0108, within PNCDI IV”.