Advantages And Limitations Of Surface Engineering

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Materials are precious resources. Different methods are employed to protect the material from degradation. Hard coatings on soft materials increases life time of the component. Materials with wear, corrosion resistance can be deposited on soft components using thermal spray coating technologies. Present research work is done with Cr2O3-25Al2O3 and WC-17Co powder materials sample are generated with optimized parameters using Detonation spray coating technology (DSC) Coating characterization was carried out. Productivity depends on the speed of machinery in order to increases productivity in Detonation spray coating system it is to be upgraded with advanced high speed valve operating system. Using 3D modeling we …show more content…

Different methods are employed to protect the material from degradation. The Centre for Engineered Coatings provides a complete overview of the concept of surface engineering and its application in diversified fields. The centre is well equipped with both the conventional and the current state of the art surface modification techniques and reviews both the advantages and limitations of each technology. The centre through its ongoing R&D efforts strides to help Indian industries to achieve their full potential and competence in area of surface engineering and coatings. Surface engineering is the discipline of science encompassing: 1. Manufacturing processes of surface layers, thus, in accordance with the accepted terminology- Superficial layers and coatings produced for both technological & end user purposes. 2. Connected phenomenon. 3. Performance effects obtained by them. 1.2. Coating Techniques The properties of surface layers produced are evaluated by methods used in surface engineering like: a) Physical Vapour Deposition (PVD) b) Detonations spray coating.(DSC) c) Solution precursor plasma sprays (SPPS). d) Cold spray coatings. e) Micro-arc oxidation. f) Pulse Electro Deposition …show more content…

Several different mechanisms have been proposed to describe the manner in which the material is removed. Three commonly identified mechanisms of abrasive wear are: 1. Plowing 2. Cutting 3. Fragmentation • Plowing occurs when material is displaced to the side, away from the wear particles, resulting in the formation of grooves that do not involve direct material removal. The displaced material forms ridges adjacent to grooves, which may be removed by subsequent passage of abrasive particles. • Cutting occurs when material is separated from the surface in the form of primary debris, or microchips, with little or no material displaced to the sides of the grooves. This mechanism closely resembles conventional machining. • Fragmentation occurs when material is separated from a surface by a cutting process and the indenting abrasive causes localized fracture of the wear material. These cracks then freely propagate locally around the wear groove, resulting in additional material removal by spalling. 2.7.5.2. Three Body Rubber Wheel Abrasion

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